Home / 691,642.02-954,464.13-385,718.76

Finding the Fourth Proportional to 691,642.02, 954,464.13 and 385,718.76

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Solution

The fourth proportional to 691,642.02, 954,464.13 and 385,718.76 is: 532,290.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,642.02 : 954,464.13 = 385,718.76 : x
  2. Step 2: Convert to fraction form
    691,642.02/954,464.13 = 385,718.76/x
  3. Step 3: Cross multiply
    691,642.02x = 954,464.13 × 385,718.76
  4. Step 4: Simplify right side
    691,642.02x = 368,154,721,772.91
  5. Step 5: Solve for x
    x = 368,154,721,772.91/691,642.02
  6. Step 6: Final answer
    x = 532,290.86

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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.