Home / 674,479.42-1,012,419.88-451,398.74

Finding the Fourth Proportional to 674,479.42, 1,012,419.88 and 451,398.74

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Solution

The fourth proportional to 674,479.42, 1,012,419.88 and 451,398.74 is: 677,567.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,479.42 : 1,012,419.88 = 451,398.74 : x
  2. Step 2: Convert to fraction form
    674,479.42/1,012,419.88 = 451,398.74/x
  3. Step 3: Cross multiply
    674,479.42x = 1,012,419.88 × 451,398.74
  4. Step 4: Simplify right side
    674,479.42x = 457,005,058,182.95
  5. Step 5: Solve for x
    x = 457,005,058,182.95/674,479.42
  6. Step 6: Final answer
    x = 677,567.09

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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.