Home / 987,165.54-1,480,872.84-338,868.06

Finding the Fourth Proportional to 987,165.54, 1,480,872.84 and 338,868.06

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Solution

The fourth proportional to 987,165.54, 1,480,872.84 and 338,868.06 is: 508,344.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,165.54 : 1,480,872.84 = 338,868.06 : x
  2. Step 2: Convert to fraction form
    987,165.54/1,480,872.84 = 338,868.06/x
  3. Step 3: Cross multiply
    987,165.54x = 1,480,872.84 × 338,868.06
  4. Step 4: Simplify right side
    987,165.54x = 501,820,506,397.49
  5. Step 5: Solve for x
    x = 501,820,506,397.49/987,165.54
  6. Step 6: Final answer
    x = 508,344.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.