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Finding the Fourth Proportional to 679,274.67, 937,420.48 and 373,374.71

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Solution

The fourth proportional to 679,274.67, 937,420.48 and 373,374.71 is: 515,268.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,274.67 : 937,420.48 = 373,374.71 : x
  2. Step 2: Convert to fraction form
    679,274.67/937,420.48 = 373,374.71/x
  3. Step 3: Cross multiply
    679,274.67x = 937,420.48 × 373,374.71
  4. Step 4: Simplify right side
    679,274.67x = 350,009,099,868.06
  5. Step 5: Solve for x
    x = 350,009,099,868.06/679,274.67
  6. Step 6: Final answer
    x = 515,268.88

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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.