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Finding the Fourth Proportional to 862.50, 1,191.06 and 601.24

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Solution

The fourth proportional to 862.50, 1,191.06 and 601.24 is: 830.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    862.50 : 1,191.06 = 601.24 : x
  2. Step 2: Convert to fraction form
    862.50/1,191.06 = 601.24/x
  3. Step 3: Cross multiply
    862.50x = 1,191.06 × 601.24
  4. Step 4: Simplify right side
    862.50x = 716,112.91
  5. Step 5: Solve for x
    x = 716,112.91/862.50
  6. Step 6: Final answer
    x = 830.28

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1.5x scale

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.