Home / 1,382,912.92-1,908,280.38-771,008.14

Finding the Fourth Proportional to 1,382,912.92, 1,908,280.38 and 771,008.14

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Solution

The fourth proportional to 1,382,912.92, 1,908,280.38 and 771,008.14 is: 1,063,913.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,912.92 : 1,908,280.38 = 771,008.14 : x
  2. Step 2: Convert to fraction form
    1,382,912.92/1,908,280.38 = 771,008.14/x
  3. Step 3: Cross multiply
    1,382,912.92x = 1,908,280.38 × 771,008.14
  4. Step 4: Simplify right side
    1,382,912.92x = 1,471,299,706,382.29
  5. Step 5: Solve for x
    x = 1,471,299,706,382.29/1,382,912.92
  6. Step 6: Final answer
    x = 1,063,913.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.