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Finding the Fourth Proportional to 545,155.68, 817,383.60 and 357,948.48

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Solution

The fourth proportional to 545,155.68, 817,383.60 and 357,948.48 is: 536,692.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,155.68 : 817,383.60 = 357,948.48 : x
  2. Step 2: Convert to fraction form
    545,155.68/817,383.60 = 357,948.48/x
  3. Step 3: Cross multiply
    545,155.68x = 817,383.60 × 357,948.48
  4. Step 4: Simplify right side
    545,155.68x = 292,581,217,196.93
  5. Step 5: Solve for x
    x = 292,581,217,196.93/545,155.68
  6. Step 6: Final answer
    x = 536,692.96

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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.