Home / 728,627.40-1,092,941.10-490,681.80

Finding the Fourth Proportional to 728,627.40, 1,092,941.10 and 490,681.80

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Solution

The fourth proportional to 728,627.40, 1,092,941.10 and 490,681.80 is: 736,022.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,627.40 : 1,092,941.10 = 490,681.80 : x
  2. Step 2: Convert to fraction form
    728,627.40/1,092,941.10 = 490,681.80/x
  3. Step 3: Cross multiply
    728,627.40x = 1,092,941.10 × 490,681.80
  4. Step 4: Simplify right side
    728,627.40x = 536,286,306,241.98
  5. Step 5: Solve for x
    x = 536,286,306,241.98/728,627.40
  6. Step 6: Final answer
    x = 736,022.70

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Double scale
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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.