Home / 767,998.20-1,151,997.30-707,345.40

Finding the Fourth Proportional to 767,998.20, 1,151,997.30 and 707,345.40

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Solution

The fourth proportional to 767,998.20, 1,151,997.30 and 707,345.40 is: 1,061,018.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,998.20 : 1,151,997.30 = 707,345.40 : x
  2. Step 2: Convert to fraction form
    767,998.20/1,151,997.30 = 707,345.40/x
  3. Step 3: Cross multiply
    767,998.20x = 1,151,997.30 × 707,345.40
  4. Step 4: Simplify right side
    767,998.20x = 814,859,990,967.42
  5. Step 5: Solve for x
    x = 814,859,990,967.42/767,998.20
  6. Step 6: Final answer
    x = 1,061,018.10

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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.