Home / 724,365.90-1,086,937.65-303,684.30

Finding the Fourth Proportional to 724,365.90, 1,086,937.65 and 303,684.30

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Solution

The fourth proportional to 724,365.90, 1,086,937.65 and 303,684.30 is: 455,689.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,365.90 : 1,086,937.65 = 303,684.30 : x
  2. Step 2: Convert to fraction form
    724,365.90/1,086,937.65 = 303,684.30/x
  3. Step 3: Cross multiply
    724,365.90x = 1,086,937.65 × 303,684.30
  4. Step 4: Simplify right side
    724,365.90x = 330,085,899,383.90
  5. Step 5: Solve for x
    x = 330,085,899,383.90/724,365.90
  6. Step 6: Final answer
    x = 455,689.45

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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.