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Finding the Fourth Proportional to 995.32, 1,488.93 and 560.08

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Solution

The fourth proportional to 995.32, 1,488.93 and 560.08 is: 837.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.32 : 1,488.93 = 560.08 : x
  2. Step 2: Convert to fraction form
    995.32/1,488.93 = 560.08/x
  3. Step 3: Cross multiply
    995.32x = 1,488.93 × 560.08
  4. Step 4: Simplify right side
    995.32x = 833,919.91
  5. Step 5: Solve for x
    x = 833,919.91/995.32
  6. Step 6: Final answer
    x = 837.84

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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.