Home / 2,620,882.40-3,931,133.88-824,279.72

Finding the Fourth Proportional to 2,620,882.40, 3,931,133.88 and 824,279.72

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Solution

The fourth proportional to 2,620,882.40, 3,931,133.88 and 824,279.72 is: 1,236,359.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620,882.40 : 3,931,133.88 = 824,279.72 : x
  2. Step 2: Convert to fraction form
    2,620,882.40/3,931,133.88 = 824,279.72/x
  3. Step 3: Cross multiply
    2,620,882.40x = 3,931,133.88 × 824,279.72
  4. Step 4: Simplify right side
    2,620,882.40x = 3,240,353,933,888.91
  5. Step 5: Solve for x
    x = 3,240,353,933,888.91/2,620,882.40
  6. Step 6: Final answer
    x = 1,236,359.91

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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.