Home / 1,077,490.78-1,616,244.27-478,290.85

Finding the Fourth Proportional to 1,077,490.78, 1,616,244.27 and 478,290.85

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Solution

The fourth proportional to 1,077,490.78, 1,616,244.27 and 478,290.85 is: 717,439.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,490.78 : 1,616,244.27 = 478,290.85 : x
  2. Step 2: Convert to fraction form
    1,077,490.78/1,616,244.27 = 478,290.85/x
  3. Step 3: Cross multiply
    1,077,490.78x = 1,616,244.27 × 478,290.85
  4. Step 4: Simplify right side
    1,077,490.78x = 773,034,849,519.83
  5. Step 5: Solve for x
    x = 773,034,849,519.83/1,077,490.78
  6. Step 6: Final answer
    x = 717,439.87

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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.