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Finding the Fourth Proportional to 485,207.60, 726,774.60 and 402,263.60

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Solution

The fourth proportional to 485,207.60, 726,774.60 and 402,263.60 is: 602,535.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,207.60 : 726,774.60 = 402,263.60 : x
  2. Step 2: Convert to fraction form
    485,207.60/726,774.60 = 402,263.60/x
  3. Step 3: Cross multiply
    485,207.60x = 726,774.60 × 402,263.60
  4. Step 4: Simplify right side
    485,207.60x = 292,354,966,984.56
  5. Step 5: Solve for x
    x = 292,354,966,984.56/485,207.60
  6. Step 6: Final answer
    x = 602,535.84

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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.