Home / 998,530.60-1,497,795.90-438,658.60

Finding the Fourth Proportional to 998,530.60, 1,497,795.90 and 438,658.60

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Solution

The fourth proportional to 998,530.60, 1,497,795.90 and 438,658.60 is: 657,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,530.60 : 1,497,795.90 = 438,658.60 : x
  2. Step 2: Convert to fraction form
    998,530.60/1,497,795.90 = 438,658.60/x
  3. Step 3: Cross multiply
    998,530.60x = 1,497,795.90 × 438,658.60
  4. Step 4: Simplify right side
    998,530.60x = 657,021,052,579.74
  5. Step 5: Solve for x
    x = 657,021,052,579.74/998,530.60
  6. Step 6: Final answer
    x = 657,987.90

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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.