Home / 558,354.48-770,505.86-328,921.17

Finding the Fourth Proportional to 558,354.48, 770,505.86 and 328,921.17

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Solution

The fourth proportional to 558,354.48, 770,505.86 and 328,921.17 is: 453,897.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,354.48 : 770,505.86 = 328,921.17 : x
  2. Step 2: Convert to fraction form
    558,354.48/770,505.86 = 328,921.17/x
  3. Step 3: Cross multiply
    558,354.48x = 770,505.86 × 328,921.17
  4. Step 4: Simplify right side
    558,354.48x = 253,435,687,318.45
  5. Step 5: Solve for x
    x = 253,435,687,318.45/558,354.48
  6. Step 6: Final answer
    x = 453,897.47

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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.