Home / 454,328.10-681,492.15-420,113.70

Finding the Fourth Proportional to 454,328.10, 681,492.15 and 420,113.70

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Solution

The fourth proportional to 454,328.10, 681,492.15 and 420,113.70 is: 630,170.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,328.10 : 681,492.15 = 420,113.70 : x
  2. Step 2: Convert to fraction form
    454,328.10/681,492.15 = 420,113.70/x
  3. Step 3: Cross multiply
    454,328.10x = 681,492.15 × 420,113.70
  4. Step 4: Simplify right side
    454,328.10x = 286,304,188,657.46
  5. Step 5: Solve for x
    x = 286,304,188,657.46/454,328.10
  6. Step 6: Final answer
    x = 630,170.55

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Similar ratio
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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.