Home / 1,561,217.28-2,154,451.76-882,139.20

Finding the Fourth Proportional to 1,561,217.28, 2,154,451.76 and 882,139.20

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Solution

The fourth proportional to 1,561,217.28, 2,154,451.76 and 882,139.20 is: 1,217,336.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,217.28 : 2,154,451.76 = 882,139.20 : x
  2. Step 2: Convert to fraction form
    1,561,217.28/2,154,451.76 = 882,139.20/x
  3. Step 3: Cross multiply
    1,561,217.28x = 2,154,451.76 × 882,139.20
  4. Step 4: Simplify right side
    1,561,217.28x = 1,900,526,352,004.99
  5. Step 5: Solve for x
    x = 1,900,526,352,004.99/1,561,217.28
  6. Step 6: Final answer
    x = 1,217,336.23

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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.