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Finding the Fourth Proportional to 679,510.91, 937,726.92 and 373,618.56

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Solution

The fourth proportional to 679,510.91, 937,726.92 and 373,618.56 is: 515,594.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,510.91 : 937,726.92 = 373,618.56 : x
  2. Step 2: Convert to fraction form
    679,510.91/937,726.92 = 373,618.56/x
  3. Step 3: Cross multiply
    679,510.91x = 937,726.92 × 373,618.56
  4. Step 4: Simplify right side
    679,510.91x = 350,352,181,523.64
  5. Step 5: Solve for x
    x = 350,352,181,523.64/679,510.91
  6. Step 6: Final answer
    x = 515,594.64

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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.