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Finding the Fourth Proportional to 545,154.93, 817,382.48 and 357,947.73

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Solution

The fourth proportional to 545,154.93, 817,382.48 and 357,947.73 is: 536,691.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,154.93 : 817,382.48 = 357,947.73 : x
  2. Step 2: Convert to fraction form
    545,154.93/817,382.48 = 357,947.73/x
  3. Step 3: Cross multiply
    545,154.93x = 817,382.48 × 357,947.73
  4. Step 4: Simplify right side
    545,154.93x = 292,580,201,468.03
  5. Step 5: Solve for x
    x = 292,580,201,468.03/545,154.93
  6. Step 6: Final answer
    x = 536,691.84

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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.