Home / 431,248.20-646,872.30-369,040.20

Finding the Fourth Proportional to 431,248.20, 646,872.30 and 369,040.20

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Solution

The fourth proportional to 431,248.20, 646,872.30 and 369,040.20 is: 553,560.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,248.20 : 646,872.30 = 369,040.20 : x
  2. Step 2: Convert to fraction form
    431,248.20/646,872.30 = 369,040.20/x
  3. Step 3: Cross multiply
    431,248.20x = 646,872.30 × 369,040.20
  4. Step 4: Simplify right side
    431,248.20x = 238,721,882,966.46
  5. Step 5: Solve for x
    x = 238,721,882,966.46/431,248.20
  6. Step 6: Final answer
    x = 553,560.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.