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Finding the Fourth Proportional to 545,158.68, 817,388.10 and 357,951.48

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Solution

The fourth proportional to 545,158.68, 817,388.10 and 357,951.48 is: 536,697.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,158.68 : 817,388.10 = 357,951.48 : x
  2. Step 2: Convert to fraction form
    545,158.68/817,388.10 = 357,951.48/x
  3. Step 3: Cross multiply
    545,158.68x = 817,388.10 × 357,951.48
  4. Step 4: Simplify right side
    545,158.68x = 292,585,280,129.39
  5. Step 5: Solve for x
    x = 292,585,280,129.39/545,158.68
  6. Step 6: Final answer
    x = 536,697.46

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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.