Home / 744,307.35-1,116,461.03-389,430.15

Finding the Fourth Proportional to 744,307.35, 1,116,461.03 and 389,430.15

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Solution

The fourth proportional to 744,307.35, 1,116,461.03 and 389,430.15 is: 584,145.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,307.35 : 1,116,461.03 = 389,430.15 : x
  2. Step 2: Convert to fraction form
    744,307.35/1,116,461.03 = 389,430.15/x
  3. Step 3: Cross multiply
    744,307.35x = 1,116,461.03 × 389,430.15
  4. Step 4: Simplify right side
    744,307.35x = 434,783,584,434.90
  5. Step 5: Solve for x
    x = 434,783,584,434.90/744,307.35
  6. Step 6: Final answer
    x = 584,145.23

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.