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Finding the Fourth Proportional to 545,620.90, 817,672.74 and 474,397.60

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Solution

The fourth proportional to 545,620.90, 817,672.74 and 474,397.60 is: 710,936.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,620.90 : 817,672.74 = 474,397.60 : x
  2. Step 2: Convert to fraction form
    545,620.90/817,672.74 = 474,397.60/x
  3. Step 3: Cross multiply
    545,620.90x = 817,672.74 × 474,397.60
  4. Step 4: Simplify right side
    545,620.90x = 387,901,985,441.42
  5. Step 5: Solve for x
    x = 387,901,985,441.42/545,620.90
  6. Step 6: Final answer
    x = 710,936.82

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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.