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Finding the Fourth Proportional to 605,207.28, 907,811.16 and 604,332.72

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Solution

The fourth proportional to 605,207.28, 907,811.16 and 604,332.72 is: 906,499.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,207.28 : 907,811.16 = 604,332.72 : x
  2. Step 2: Convert to fraction form
    605,207.28/907,811.16 = 604,332.72/x
  3. Step 3: Cross multiply
    605,207.28x = 907,811.16 × 604,332.72
  4. Step 4: Simplify right side
    605,207.28x = 548,619,987,569.16
  5. Step 5: Solve for x
    x = 548,619,987,569.16/605,207.28
  6. Step 6: Final answer
    x = 906,499.32

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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.