Home / 987,988.38-1,363,389.24-558,259.29

Finding the Fourth Proportional to 987,988.38, 1,363,389.24 and 558,259.29

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Solution

The fourth proportional to 987,988.38, 1,363,389.24 and 558,259.29 is: 770,378.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,988.38 : 1,363,389.24 = 558,259.29 : x
  2. Step 2: Convert to fraction form
    987,988.38/1,363,389.24 = 558,259.29/x
  3. Step 3: Cross multiply
    987,988.38x = 1,363,389.24 × 558,259.29
  4. Step 4: Simplify right side
    987,988.38x = 761,124,709,116.04
  5. Step 5: Solve for x
    x = 761,124,709,116.04/987,988.38
  6. Step 6: Final answer
    x = 770,378.20

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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.