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Finding the Fourth Proportional to 679,561.86, 937,775.53 and 373,637.92

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Solution

The fourth proportional to 679,561.86, 937,775.53 and 373,637.92 is: 515,609.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,561.86 : 937,775.53 = 373,637.92 : x
  2. Step 2: Convert to fraction form
    679,561.86/937,775.53 = 373,637.92/x
  3. Step 3: Cross multiply
    679,561.86x = 937,775.53 × 373,637.92
  4. Step 4: Simplify right side
    679,561.86x = 350,388,498,456.10
  5. Step 5: Solve for x
    x = 350,388,498,456.10/679,561.86
  6. Step 6: Final answer
    x = 515,609.42

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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.