Home / 496,922.40-745,383.60-458,431.20

Finding the Fourth Proportional to 496,922.40, 745,383.60 and 458,431.20

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Solution

The fourth proportional to 496,922.40, 745,383.60 and 458,431.20 is: 687,646.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,922.40 : 745,383.60 = 458,431.20 : x
  2. Step 2: Convert to fraction form
    496,922.40/745,383.60 = 458,431.20/x
  3. Step 3: Cross multiply
    496,922.40x = 745,383.60 × 458,431.20
  4. Step 4: Simplify right side
    496,922.40x = 341,707,098,208.32
  5. Step 5: Solve for x
    x = 341,707,098,208.32/496,922.40
  6. Step 6: Final answer
    x = 687,646.80

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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.