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Finding the Fourth Proportional to 605,204.80, 907,807.20 and 402,251.20

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Solution

The fourth proportional to 605,204.80, 907,807.20 and 402,251.20 is: 603,376.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,204.80 : 907,807.20 = 402,251.20 : x
  2. Step 2: Convert to fraction form
    605,204.80/907,807.20 = 402,251.20/x
  3. Step 3: Cross multiply
    605,204.80x = 907,807.20 × 402,251.20
  4. Step 4: Simplify right side
    605,204.80x = 365,166,535,568.64
  5. Step 5: Solve for x
    x = 365,166,535,568.64/605,204.80
  6. Step 6: Final answer
    x = 603,376.80

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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.