Home / 678,022.07-935,672.18-372,100.86

Finding the Fourth Proportional to 678,022.07, 935,672.18 and 372,100.86

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Solution

The fourth proportional to 678,022.07, 935,672.18 and 372,100.86 is: 513,500.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,022.07 : 935,672.18 = 372,100.86 : x
  2. Step 2: Convert to fraction form
    678,022.07/935,672.18 = 372,100.86/x
  3. Step 3: Cross multiply
    678,022.07x = 935,672.18 × 372,100.86
  4. Step 4: Simplify right side
    678,022.07x = 348,164,420,995.57
  5. Step 5: Solve for x
    x = 348,164,420,995.57/678,022.07
  6. Step 6: Final answer
    x = 513,500.13

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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.