Home / 763,521.30-1,144,990.35-230,865.30

Finding the Fourth Proportional to 763,521.30, 1,144,990.35 and 230,865.30

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Solution

The fourth proportional to 763,521.30, 1,144,990.35 and 230,865.30 is: 346,209.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,521.30 : 1,144,990.35 = 230,865.30 : x
  2. Step 2: Convert to fraction form
    763,521.30/1,144,990.35 = 230,865.30/x
  3. Step 3: Cross multiply
    763,521.30x = 1,144,990.35 × 230,865.30
  4. Step 4: Simplify right side
    763,521.30x = 264,338,540,649.86
  5. Step 5: Solve for x
    x = 264,338,540,649.86/763,521.30
  6. Step 6: Final answer
    x = 346,209.78

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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.