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Finding the Fourth Proportional to 526.19, 787.41 and 495.05

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Solution

The fourth proportional to 526.19, 787.41 and 495.05 is: 740.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.19 : 787.41 = 495.05 : x
  2. Step 2: Convert to fraction form
    526.19/787.41 = 495.05/x
  3. Step 3: Cross multiply
    526.19x = 787.41 × 495.05
  4. Step 4: Simplify right side
    526.19x = 389,803.38
  5. Step 5: Solve for x
    x = 389,803.38/526.19
  6. Step 6: Final answer
    x = 740.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.