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Finding the Fourth Proportional to 1,079.80, 1,619.04 and 592.72

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Solution

The fourth proportional to 1,079.80, 1,619.04 and 592.72 is: 888.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079.80 : 1,619.04 = 592.72 : x
  2. Step 2: Convert to fraction form
    1,079.80/1,619.04 = 592.72/x
  3. Step 3: Cross multiply
    1,079.80x = 1,619.04 × 592.72
  4. Step 4: Simplify right side
    1,079.80x = 959,637.39
  5. Step 5: Solve for x
    x = 959,637.39/1,079.80
  6. Step 6: Final answer
    x = 888.72

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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.