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Finding the Fourth Proportional to 565,781.02, 781,146.40 and 351,236.32

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Solution

The fourth proportional to 565,781.02, 781,146.40 and 351,236.32 is: 484,934.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,781.02 : 781,146.40 = 351,236.32 : x
  2. Step 2: Convert to fraction form
    565,781.02/781,146.40 = 351,236.32/x
  3. Step 3: Cross multiply
    565,781.02x = 781,146.40 × 351,236.32
  4. Step 4: Simplify right side
    565,781.02x = 274,366,986,917.25
  5. Step 5: Solve for x
    x = 274,366,986,917.25/565,781.02
  6. Step 6: Final answer
    x = 484,934.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.