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Finding the Fourth Proportional to 674,717.04, 931,168.80 and 372,969.36

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Solution

The fourth proportional to 674,717.04, 931,168.80 and 372,969.36 is: 514,730.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,717.04 : 931,168.80 = 372,969.36 : x
  2. Step 2: Convert to fraction form
    674,717.04/931,168.80 = 372,969.36/x
  3. Step 3: Cross multiply
    674,717.04x = 931,168.80 × 372,969.36
  4. Step 4: Simplify right side
    674,717.04x = 347,297,431,387.97
  5. Step 5: Solve for x
    x = 347,297,431,387.97/674,717.04
  6. Step 6: Final answer
    x = 514,730.49

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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.