Home / 1,059,891.80-1,587,504.90-638,432.60

Finding the Fourth Proportional to 1,059,891.80, 1,587,504.90 and 638,432.60

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Solution

The fourth proportional to 1,059,891.80, 1,587,504.90 and 638,432.60 is: 956,243.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,059,891.80 : 1,587,504.90 = 638,432.60 : x
  2. Step 2: Convert to fraction form
    1,059,891.80/1,587,504.90 = 638,432.60/x
  3. Step 3: Cross multiply
    1,059,891.80x = 1,587,504.90 × 638,432.60
  4. Step 4: Simplify right side
    1,059,891.80x = 1,013,514,880,819.74
  5. Step 5: Solve for x
    x = 1,013,514,880,819.74/1,059,891.80
  6. Step 6: Final answer
    x = 956,243.72

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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.