Home / 1,425,398.40-2,135,116.80-667,886.40

Finding the Fourth Proportional to 1,425,398.40, 2,135,116.80 and 667,886.40

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Solution

The fourth proportional to 1,425,398.40, 2,135,116.80 and 667,886.40 is: 1,000,432.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,398.40 : 2,135,116.80 = 667,886.40 : x
  2. Step 2: Convert to fraction form
    1,425,398.40/2,135,116.80 = 667,886.40/x
  3. Step 3: Cross multiply
    1,425,398.40x = 2,135,116.80 × 667,886.40
  4. Step 4: Simplify right side
    1,425,398.40x = 1,426,015,473,131.52
  5. Step 5: Solve for x
    x = 1,426,015,473,131.52/1,425,398.40
  6. Step 6: Final answer
    x = 1,000,432.91

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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.