Home / 1,561,161.95-2,154,283.72-949,229.76

Finding the Fourth Proportional to 1,561,161.95, 2,154,283.72 and 949,229.76

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Solution

The fourth proportional to 1,561,161.95, 2,154,283.72 and 949,229.76 is: 1,309,864.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,161.95 : 2,154,283.72 = 949,229.76 : x
  2. Step 2: Convert to fraction form
    1,561,161.95/2,154,283.72 = 949,229.76/x
  3. Step 3: Cross multiply
    1,561,161.95x = 2,154,283.72 × 949,229.76
  4. Step 4: Simplify right side
    1,561,161.95x = 2,044,910,216,134.43
  5. Step 5: Solve for x
    x = 2,044,910,216,134.43/1,561,161.95
  6. Step 6: Final answer
    x = 1,309,864.25

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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.