Home / 1,512,711.30-2,087,513.70-824,388.72

Finding the Fourth Proportional to 1,512,711.30, 2,087,513.70 and 824,388.72

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Solution

The fourth proportional to 1,512,711.30, 2,087,513.70 and 824,388.72 is: 1,137,641.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,711.30 : 2,087,513.70 = 824,388.72 : x
  2. Step 2: Convert to fraction form
    1,512,711.30/2,087,513.70 = 824,388.72/x
  3. Step 3: Cross multiply
    1,512,711.30x = 2,087,513.70 × 824,388.72
  4. Step 4: Simplify right side
    1,512,711.30x = 1,720,922,747,125.46
  5. Step 5: Solve for x
    x = 1,720,922,747,125.46/1,512,711.30
  6. Step 6: Final answer
    x = 1,137,641.23

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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.