Home / 558,990.92-771,407.15-304,342.11

Finding the Fourth Proportional to 558,990.92, 771,407.15 and 304,342.11

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Solution

The fourth proportional to 558,990.92, 771,407.15 and 304,342.11 is: 419,991.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,990.92 : 771,407.15 = 304,342.11 : x
  2. Step 2: Convert to fraction form
    558,990.92/771,407.15 = 304,342.11/x
  3. Step 3: Cross multiply
    558,990.92x = 771,407.15 × 304,342.11
  4. Step 4: Simplify right side
    558,990.92x = 234,771,678,178.38
  5. Step 5: Solve for x
    x = 234,771,678,178.38/558,990.92
  6. Step 6: Final answer
    x = 419,991.93

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Double scale
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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.