Home / 998,530.40-1,497,795.60-438,658.40

Finding the Fourth Proportional to 998,530.40, 1,497,795.60 and 438,658.40

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Solution

The fourth proportional to 998,530.40, 1,497,795.60 and 438,658.40 is: 657,987.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,530.40 : 1,497,795.60 = 438,658.40 : x
  2. Step 2: Convert to fraction form
    998,530.40/1,497,795.60 = 438,658.40/x
  3. Step 3: Cross multiply
    998,530.40x = 1,497,795.60 × 438,658.40
  4. Step 4: Simplify right side
    998,530.40x = 657,020,621,423.04
  5. Step 5: Solve for x
    x = 657,020,621,423.04/998,530.40
  6. Step 6: Final answer
    x = 657,987.60

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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.