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Finding the Fourth Proportional to 1,041.20, 1,436.80 and 599.04

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Solution

The fourth proportional to 1,041.20, 1,436.80 and 599.04 is: 826.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,041.20 : 1,436.80 = 599.04 : x
  2. Step 2: Convert to fraction form
    1,041.20/1,436.80 = 599.04/x
  3. Step 3: Cross multiply
    1,041.20x = 1,436.80 × 599.04
  4. Step 4: Simplify right side
    1,041.20x = 860,700.67
  5. Step 5: Solve for x
    x = 860,700.67/1,041.20
  6. Step 6: Final answer
    x = 826.64

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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.