Home / 729,076.92-1,006,124.76-406,767.84

Finding the Fourth Proportional to 729,076.92, 1,006,124.76 and 406,767.84

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Solution

The fourth proportional to 729,076.92, 1,006,124.76 and 406,767.84 is: 561,338.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,076.92 : 1,006,124.76 = 406,767.84 : x
  2. Step 2: Convert to fraction form
    729,076.92/1,006,124.76 = 406,767.84/x
  3. Step 3: Cross multiply
    729,076.92x = 1,006,124.76 × 406,767.84
  4. Step 4: Simplify right side
    729,076.92x = 409,259,195,395.72
  5. Step 5: Solve for x
    x = 409,259,195,395.72/729,076.92
  6. Step 6: Final answer
    x = 561,338.84

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.