Home / 987,932.73-1,363,242.84-558,129.86

Finding the Fourth Proportional to 987,932.73, 1,363,242.84 and 558,129.86

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Solution

The fourth proportional to 987,932.73, 1,363,242.84 and 558,129.86 is: 770,160.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,932.73 : 1,363,242.84 = 558,129.86 : x
  2. Step 2: Convert to fraction form
    987,932.73/1,363,242.84 = 558,129.86/x
  3. Step 3: Cross multiply
    987,932.73x = 1,363,242.84 × 558,129.86
  4. Step 4: Simplify right side
    987,932.73x = 760,866,528,618.99
  5. Step 5: Solve for x
    x = 760,866,528,618.99/987,932.73
  6. Step 6: Final answer
    x = 770,160.26

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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.