Home / 1,511,426.20-2,267,438.28-431,948.44

Finding the Fourth Proportional to 1,511,426.20, 2,267,438.28 and 431,948.44

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Solution

The fourth proportional to 1,511,426.20, 2,267,438.28 and 431,948.44 is: 648,008.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,426.20 : 2,267,438.28 = 431,948.44 : x
  2. Step 2: Convert to fraction form
    1,511,426.20/2,267,438.28 = 431,948.44/x
  3. Step 3: Cross multiply
    1,511,426.20x = 2,267,438.28 × 431,948.44
  4. Step 4: Simplify right side
    1,511,426.20x = 979,416,427,842.28
  5. Step 5: Solve for x
    x = 979,416,427,842.28/1,511,426.20
  6. Step 6: Final answer
    x = 648,008.11

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Double scale
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1.5x scale

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.