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Finding the Fourth Proportional to 672.95, 1,013.38 and 500.84

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Solution

The fourth proportional to 672.95, 1,013.38 and 500.84 is: 754.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    672.95 : 1,013.38 = 500.84 : x
  2. Step 2: Convert to fraction form
    672.95/1,013.38 = 500.84/x
  3. Step 3: Cross multiply
    672.95x = 1,013.38 × 500.84
  4. Step 4: Simplify right side
    672.95x = 507,541.24
  5. Step 5: Solve for x
    x = 507,541.24/672.95
  6. Step 6: Final answer
    x = 754.20

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.