Home / 2,578,695.79-3,868,172.16-981,382.67

Finding the Fourth Proportional to 2,578,695.79, 3,868,172.16 and 981,382.67

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Solution

The fourth proportional to 2,578,695.79, 3,868,172.16 and 981,382.67 is: 1,472,122.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,695.79 : 3,868,172.16 = 981,382.67 : x
  2. Step 2: Convert to fraction form
    2,578,695.79/3,868,172.16 = 981,382.67/x
  3. Step 3: Cross multiply
    2,578,695.79x = 3,868,172.16 × 981,382.67
  4. Step 4: Simplify right side
    2,578,695.79x = 3,796,157,132,070.90
  5. Step 5: Solve for x
    x = 3,796,157,132,070.90/2,578,695.79
  6. Step 6: Final answer
    x = 1,472,122.90

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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.