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Finding the Fourth Proportional to 1,079,548.04, 1,619,324.10 and 280,828.30

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Solution

The fourth proportional to 1,079,548.04, 1,619,324.10 and 280,828.30 is: 421,242.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,548.04 : 1,619,324.10 = 280,828.30 : x
  2. Step 2: Convert to fraction form
    1,079,548.04/1,619,324.10 = 280,828.30/x
  3. Step 3: Cross multiply
    1,079,548.04x = 1,619,324.10 × 280,828.30
  4. Step 4: Simplify right side
    1,079,548.04x = 454,752,033,139.95
  5. Step 5: Solve for x
    x = 454,752,033,139.95/1,079,548.04
  6. Step 6: Final answer
    x = 421,242.98

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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.