Home / 987,694.12-1,363,020.78-534,985.12

Finding the Fourth Proportional to 987,694.12, 1,363,020.78 and 534,985.12

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Solution

The fourth proportional to 987,694.12, 1,363,020.78 and 534,985.12 is: 738,281.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,694.12 : 1,363,020.78 = 534,985.12 : x
  2. Step 2: Convert to fraction form
    987,694.12/1,363,020.78 = 534,985.12/x
  3. Step 3: Cross multiply
    987,694.12x = 1,363,020.78 × 534,985.12
  4. Step 4: Simplify right side
    987,694.12x = 729,195,835,550.79
  5. Step 5: Solve for x
    x = 729,195,835,550.79/987,694.12
  6. Step 6: Final answer
    x = 738,281.03

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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.