Home / 738,364.30-1,107,546.45-620,266.30

Finding the Fourth Proportional to 738,364.30, 1,107,546.45 and 620,266.30

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Solution

The fourth proportional to 738,364.30, 1,107,546.45 and 620,266.30 is: 930,399.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,364.30 : 1,107,546.45 = 620,266.30 : x
  2. Step 2: Convert to fraction form
    738,364.30/1,107,546.45 = 620,266.30/x
  3. Step 3: Cross multiply
    738,364.30x = 1,107,546.45 × 620,266.30
  4. Step 4: Simplify right side
    738,364.30x = 686,973,738,619.64
  5. Step 5: Solve for x
    x = 686,973,738,619.64/738,364.30
  6. Step 6: Final answer
    x = 930,399.45

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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.