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Finding the Fourth Proportional to 678,371.64, 936,154.48 and 372,467.74

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Solution

The fourth proportional to 678,371.64, 936,154.48 and 372,467.74 is: 514,006.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,371.64 : 936,154.48 = 372,467.74 : x
  2. Step 2: Convert to fraction form
    678,371.64/936,154.48 = 372,467.74/x
  3. Step 3: Cross multiply
    678,371.64x = 936,154.48 × 372,467.74
  4. Step 4: Simplify right side
    678,371.64x = 348,687,343,456.48
  5. Step 5: Solve for x
    x = 348,687,343,456.48/678,371.64
  6. Step 6: Final answer
    x = 514,006.37

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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.