Home / 998,480.40-1,497,720.60-840,433.20

Finding the Fourth Proportional to 998,480.40, 1,497,720.60 and 840,433.20

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Solution

The fourth proportional to 998,480.40, 1,497,720.60 and 840,433.20 is: 1,260,649.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,480.40 : 1,497,720.60 = 840,433.20 : x
  2. Step 2: Convert to fraction form
    998,480.40/1,497,720.60 = 840,433.20/x
  3. Step 3: Cross multiply
    998,480.40x = 1,497,720.60 × 840,433.20
  4. Step 4: Simplify right side
    998,480.40x = 1,258,734,116,563.92
  5. Step 5: Solve for x
    x = 1,258,734,116,563.92/998,480.40
  6. Step 6: Final answer
    x = 1,260,649.80

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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.