Home / 1,040,637.40-1,559,919.30-478,691.80

Finding the Fourth Proportional to 1,040,637.40, 1,559,919.30 and 478,691.80

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Solution

The fourth proportional to 1,040,637.40, 1,559,919.30 and 478,691.80 is: 717,560.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,637.40 : 1,559,919.30 = 478,691.80 : x
  2. Step 2: Convert to fraction form
    1,040,637.40/1,559,919.30 = 478,691.80/x
  3. Step 3: Cross multiply
    1,040,637.40x = 1,559,919.30 × 478,691.80
  4. Step 4: Simplify right side
    1,040,637.40x = 746,720,577,571.74
  5. Step 5: Solve for x
    x = 746,720,577,571.74/1,040,637.40
  6. Step 6: Final answer
    x = 717,560.77

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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.