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Finding the Fourth Proportional to 876.64, 1,210.02 and 544.90

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Solution

The fourth proportional to 876.64, 1,210.02 and 544.90 is: 752.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    876.64 : 1,210.02 = 544.90 : x
  2. Step 2: Convert to fraction form
    876.64/1,210.02 = 544.90/x
  3. Step 3: Cross multiply
    876.64x = 1,210.02 × 544.90
  4. Step 4: Simplify right side
    876.64x = 659,339.90
  5. Step 5: Solve for x
    x = 659,339.90/876.64
  6. Step 6: Final answer
    x = 752.12

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.