Home / 674,721.27-931,114.56-368,799.66

Finding the Fourth Proportional to 674,721.27, 931,114.56 and 368,799.66

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Solution

The fourth proportional to 674,721.27, 931,114.56 and 368,799.66 is: 508,943.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,721.27 : 931,114.56 = 368,799.66 : x
  2. Step 2: Convert to fraction form
    674,721.27/931,114.56 = 368,799.66/x
  3. Step 3: Cross multiply
    674,721.27x = 931,114.56 × 368,799.66
  4. Step 4: Simplify right side
    674,721.27x = 343,394,733,149.05
  5. Step 5: Solve for x
    x = 343,394,733,149.05/674,721.27
  6. Step 6: Final answer
    x = 508,943.10

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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.