Home / 1,059,901.80-1,587,519.90-638,442.60

Finding the Fourth Proportional to 1,059,901.80, 1,587,519.90 and 638,442.60

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Solution

The fourth proportional to 1,059,901.80, 1,587,519.90 and 638,442.60 is: 956,258.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,059,901.80 : 1,587,519.90 = 638,442.60 : x
  2. Step 2: Convert to fraction form
    1,059,901.80/1,587,519.90 = 638,442.60/x
  3. Step 3: Cross multiply
    1,059,901.80x = 1,587,519.90 × 638,442.60
  4. Step 4: Simplify right side
    1,059,901.80x = 1,013,540,332,507.74
  5. Step 5: Solve for x
    x = 1,013,540,332,507.74/1,059,901.80
  6. Step 6: Final answer
    x = 956,258.71

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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.