Home / 1,040,369.40-1,559,517.30-478,423.80

Finding the Fourth Proportional to 1,040,369.40, 1,559,517.30 and 478,423.80

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Solution

The fourth proportional to 1,040,369.40, 1,559,517.30 and 478,423.80 is: 717,158.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,369.40 : 1,559,517.30 = 478,423.80 : x
  2. Step 2: Convert to fraction form
    1,040,369.40/1,559,517.30 = 478,423.80/x
  3. Step 3: Cross multiply
    1,040,369.40x = 1,559,517.30 × 478,423.80
  4. Step 4: Simplify right side
    1,040,369.40x = 746,110,192,831.74
  5. Step 5: Solve for x
    x = 746,110,192,831.74/1,040,369.40
  6. Step 6: Final answer
    x = 717,158.92

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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.