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Finding the Fourth Proportional to 558,355.72, 770,599.32 and 328,901.17

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Solution

The fourth proportional to 558,355.72, 770,599.32 and 328,901.17 is: 453,923.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,355.72 : 770,599.32 = 328,901.17 : x
  2. Step 2: Convert to fraction form
    558,355.72/770,599.32 = 328,901.17/x
  3. Step 3: Cross multiply
    558,355.72x = 770,599.32 × 328,901.17
  4. Step 4: Simplify right side
    558,355.72x = 253,451,017,949.20
  5. Step 5: Solve for x
    x = 253,451,017,949.20/558,355.72
  6. Step 6: Final answer
    x = 453,923.92

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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.