Home / 998,749.60-1,498,124.40-438,877.60

Finding the Fourth Proportional to 998,749.60, 1,498,124.40 and 438,877.60

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Solution

The fourth proportional to 998,749.60, 1,498,124.40 and 438,877.60 is: 658,316.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,749.60 : 1,498,124.40 = 438,877.60 : x
  2. Step 2: Convert to fraction form
    998,749.60/1,498,124.40 = 438,877.60/x
  3. Step 3: Cross multiply
    998,749.60x = 1,498,124.40 × 438,877.60
  4. Step 4: Simplify right side
    998,749.60x = 657,493,241,173.44
  5. Step 5: Solve for x
    x = 657,493,241,173.44/998,749.60
  6. Step 6: Final answer
    x = 658,316.40

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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.