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Finding the Fourth Proportional to 875.76, 1,209.06 and 544.37

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Solution

The fourth proportional to 875.76, 1,209.06 and 544.37 is: 751.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    875.76 : 1,209.06 = 544.37 : x
  2. Step 2: Convert to fraction form
    875.76/1,209.06 = 544.37/x
  3. Step 3: Cross multiply
    875.76x = 1,209.06 × 544.37
  4. Step 4: Simplify right side
    875.76x = 658,167.91
  5. Step 5: Solve for x
    x = 658,167.91/875.76
  6. Step 6: Final answer
    x = 751.54

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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.