Home / 691,631.42-954,449.47-385,708.13

Finding the Fourth Proportional to 691,631.42, 954,449.47 and 385,708.13

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Solution

The fourth proportional to 691,631.42, 954,449.47 and 385,708.13 is: 532,276.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,631.42 : 954,449.47 = 385,708.13 : x
  2. Step 2: Convert to fraction form
    691,631.42/954,449.47 = 385,708.13/x
  3. Step 3: Cross multiply
    691,631.42x = 954,449.47 × 385,708.13
  4. Step 4: Simplify right side
    691,631.42x = 368,138,916,445.21
  5. Step 5: Solve for x
    x = 368,138,916,445.21/691,631.42
  6. Step 6: Final answer
    x = 532,276.16

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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.