Home / 826,295.20-1,239,442.80-472,001.20

Finding the Fourth Proportional to 826,295.20, 1,239,442.80 and 472,001.20

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Solution

The fourth proportional to 826,295.20, 1,239,442.80 and 472,001.20 is: 708,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,295.20 : 1,239,442.80 = 472,001.20 : x
  2. Step 2: Convert to fraction form
    826,295.20/1,239,442.80 = 472,001.20/x
  3. Step 3: Cross multiply
    826,295.20x = 1,239,442.80 × 472,001.20
  4. Step 4: Simplify right side
    826,295.20x = 585,018,488,931.36
  5. Step 5: Solve for x
    x = 585,018,488,931.36/826,295.20
  6. Step 6: Final answer
    x = 708,001.80

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Double scale
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Similar ratio
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1.5x scale

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.