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Finding the Fourth Proportional to 679,187.90, 937,301.78 and 373,275.13

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Solution

The fourth proportional to 679,187.90, 937,301.78 and 373,275.13 is: 515,132.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,187.90 : 937,301.78 = 373,275.13 : x
  2. Step 2: Convert to fraction form
    679,187.90/937,301.78 = 373,275.13/x
  3. Step 3: Cross multiply
    679,187.90x = 937,301.78 × 373,275.13
  4. Step 4: Simplify right side
    679,187.90x = 349,871,439,390.27
  5. Step 5: Solve for x
    x = 349,871,439,390.27/679,187.90
  6. Step 6: Final answer
    x = 515,132.02

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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.