Home / 998,139.40-1,497,209.10-366,971.20

Finding the Fourth Proportional to 998,139.40, 1,497,209.10 and 366,971.20

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Solution

The fourth proportional to 998,139.40, 1,497,209.10 and 366,971.20 is: 550,456.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,139.40 : 1,497,209.10 = 366,971.20 : x
  2. Step 2: Convert to fraction form
    998,139.40/1,497,209.10 = 366,971.20/x
  3. Step 3: Cross multiply
    998,139.40x = 1,497,209.10 × 366,971.20
  4. Step 4: Simplify right side
    998,139.40x = 549,432,620,077.92
  5. Step 5: Solve for x
    x = 549,432,620,077.92/998,139.40
  6. Step 6: Final answer
    x = 550,456.80

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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.