Home / 1,200,031.72-1,656,101.22-663,522.28

Finding the Fourth Proportional to 1,200,031.72, 1,656,101.22 and 663,522.28

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Solution

The fourth proportional to 1,200,031.72, 1,656,101.22 and 663,522.28 is: 915,692.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,031.72 : 1,656,101.22 = 663,522.28 : x
  2. Step 2: Convert to fraction form
    1,200,031.72/1,656,101.22 = 663,522.28/x
  3. Step 3: Cross multiply
    1,200,031.72x = 1,656,101.22 × 663,522.28
  4. Step 4: Simplify right side
    1,200,031.72x = 1,098,860,057,405.18
  5. Step 5: Solve for x
    x = 1,098,860,057,405.18/1,200,031.72
  6. Step 6: Final answer
    x = 915,692.51

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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.