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Finding the Fourth Proportional to 876.57, 1,209.51 and 582.24

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Solution

The fourth proportional to 876.57, 1,209.51 and 582.24 is: 803.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    876.57 : 1,209.51 = 582.24 : x
  2. Step 2: Convert to fraction form
    876.57/1,209.51 = 582.24/x
  3. Step 3: Cross multiply
    876.57x = 1,209.51 × 582.24
  4. Step 4: Simplify right side
    876.57x = 704,225.10
  5. Step 5: Solve for x
    x = 704,225.10/876.57
  6. Step 6: Final answer
    x = 803.39

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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.