Home / 987,998.16-1,363,419.68-558,269.04

Finding the Fourth Proportional to 987,998.16, 1,363,419.68 and 558,269.04

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Solution

The fourth proportional to 987,998.16, 1,363,419.68 and 558,269.04 is: 770,401.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,998.16 : 1,363,419.68 = 558,269.04 : x
  2. Step 2: Convert to fraction form
    987,998.16/1,363,419.68 = 558,269.04/x
  3. Step 3: Cross multiply
    987,998.16x = 1,363,419.68 × 558,269.04
  4. Step 4: Simplify right side
    987,998.16x = 761,154,995,870.71
  5. Step 5: Solve for x
    x = 761,154,995,870.71/987,998.16
  6. Step 6: Final answer
    x = 770,401.23

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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.