Home / 753,690.90-1,129,552.20-543,082.80

Finding the Fourth Proportional to 753,690.90, 1,129,552.20 and 543,082.80

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Solution

The fourth proportional to 753,690.90, 1,129,552.20 and 543,082.80 is: 813,915.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,690.90 : 1,129,552.20 = 543,082.80 : x
  2. Step 2: Convert to fraction form
    753,690.90/1,129,552.20 = 543,082.80/x
  3. Step 3: Cross multiply
    753,690.90x = 1,129,552.20 × 543,082.80
  4. Step 4: Simplify right side
    753,690.90x = 613,440,371,522.16
  5. Step 5: Solve for x
    x = 613,440,371,522.16/753,690.90
  6. Step 6: Final answer
    x = 813,915.06

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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.