Home / 1,427,154.12-2,140,731.36-429,882.12

Finding the Fourth Proportional to 1,427,154.12, 2,140,731.36 and 429,882.12

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Solution

The fourth proportional to 1,427,154.12, 2,140,731.36 and 429,882.12 is: 644,823.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,154.12 : 2,140,731.36 = 429,882.12 : x
  2. Step 2: Convert to fraction form
    1,427,154.12/2,140,731.36 = 429,882.12/x
  3. Step 3: Cross multiply
    1,427,154.12x = 2,140,731.36 × 429,882.12
  4. Step 4: Simplify right side
    1,427,154.12x = 920,262,135,387.28
  5. Step 5: Solve for x
    x = 920,262,135,387.28/1,427,154.12
  6. Step 6: Final answer
    x = 644,823.23

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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.