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Finding the Fourth Proportional to 558,061.93, 770,151.78 and 316,349.20

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Solution

The fourth proportional to 558,061.93, 770,151.78 and 316,349.20 is: 436,576.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,061.93 : 770,151.78 = 316,349.20 : x
  2. Step 2: Convert to fraction form
    558,061.93/770,151.78 = 316,349.20/x
  3. Step 3: Cross multiply
    558,061.93x = 770,151.78 × 316,349.20
  4. Step 4: Simplify right side
    558,061.93x = 243,636,899,481.58
  5. Step 5: Solve for x
    x = 243,636,899,481.58/558,061.93
  6. Step 6: Final answer
    x = 436,576.81

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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.