Home / 1,377,119.90-2,065,678.24-478,561.72

Finding the Fourth Proportional to 1,377,119.90, 2,065,678.24 and 478,561.72

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Solution

The fourth proportional to 1,377,119.90, 2,065,678.24 and 478,561.72 is: 717,842.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,119.90 : 2,065,678.24 = 478,561.72 : x
  2. Step 2: Convert to fraction form
    1,377,119.90/2,065,678.24 = 478,561.72/x
  3. Step 3: Cross multiply
    1,377,119.90x = 2,065,678.24 × 478,561.72
  4. Step 4: Simplify right side
    1,377,119.90x = 988,554,531,500.97
  5. Step 5: Solve for x
    x = 988,554,531,500.97/1,377,119.90
  6. Step 6: Final answer
    x = 717,842.02

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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.