Home / 672,342.35-927,865.34-378,084.69

Finding the Fourth Proportional to 672,342.35, 927,865.34 and 378,084.69

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Solution

The fourth proportional to 672,342.35, 927,865.34 and 378,084.69 is: 521,775.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,342.35 : 927,865.34 = 378,084.69 : x
  2. Step 2: Convert to fraction form
    672,342.35/927,865.34 = 378,084.69/x
  3. Step 3: Cross multiply
    672,342.35x = 927,865.34 × 378,084.69
  4. Step 4: Simplify right side
    672,342.35x = 350,811,678,480.14
  5. Step 5: Solve for x
    x = 350,811,678,480.14/672,342.35
  6. Step 6: Final answer
    x = 521,775.37

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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.