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Finding the Fourth Proportional to 883.99, 1,219.45 and 524.87

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Solution

The fourth proportional to 883.99, 1,219.45 and 524.87 is: 724.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.99 : 1,219.45 = 524.87 : x
  2. Step 2: Convert to fraction form
    883.99/1,219.45 = 524.87/x
  3. Step 3: Cross multiply
    883.99x = 1,219.45 × 524.87
  4. Step 4: Simplify right side
    883.99x = 640,052.72
  5. Step 5: Solve for x
    x = 640,052.72/883.99
  6. Step 6: Final answer
    x = 724.05

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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.