Home / 1,281,724.30-1,920,512.85-807,561.10

Finding the Fourth Proportional to 1,281,724.30, 1,920,512.85 and 807,561.10

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Solution

The fourth proportional to 1,281,724.30, 1,920,512.85 and 807,561.10 is: 1,210,035.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,724.30 : 1,920,512.85 = 807,561.10 : x
  2. Step 2: Convert to fraction form
    1,281,724.30/1,920,512.85 = 807,561.10/x
  3. Step 3: Cross multiply
    1,281,724.30x = 1,920,512.85 × 807,561.10
  4. Step 4: Simplify right side
    1,281,724.30x = 1,550,931,469,710.14
  5. Step 5: Solve for x
    x = 1,550,931,469,710.14/1,281,724.30
  6. Step 6: Final answer
    x = 1,210,035.16

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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.