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Finding the Fourth Proportional to 756.28, 1,043.49 and 508.06

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Solution

The fourth proportional to 756.28, 1,043.49 and 508.06 is: 701.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    756.28 : 1,043.49 = 508.06 : x
  2. Step 2: Convert to fraction form
    756.28/1,043.49 = 508.06/x
  3. Step 3: Cross multiply
    756.28x = 1,043.49 × 508.06
  4. Step 4: Simplify right side
    756.28x = 530,155.53
  5. Step 5: Solve for x
    x = 530,155.53/756.28
  6. Step 6: Final answer
    x = 701.00

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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.