Home / 721,872.20-1,082,808.30-497,923.40

Finding the Fourth Proportional to 721,872.20, 1,082,808.30 and 497,923.40

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Solution

The fourth proportional to 721,872.20, 1,082,808.30 and 497,923.40 is: 746,885.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,872.20 : 1,082,808.30 = 497,923.40 : x
  2. Step 2: Convert to fraction form
    721,872.20/1,082,808.30 = 497,923.40/x
  3. Step 3: Cross multiply
    721,872.20x = 1,082,808.30 × 497,923.40
  4. Step 4: Simplify right side
    721,872.20x = 539,155,590,284.22
  5. Step 5: Solve for x
    x = 539,155,590,284.22/721,872.20
  6. Step 6: Final answer
    x = 746,885.10

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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.