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Finding the Fourth Proportional to 672.74, 927.70 and 525.32

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Solution

The fourth proportional to 672.74, 927.70 and 525.32 is: 724.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    672.74 : 927.70 = 525.32 : x
  2. Step 2: Convert to fraction form
    672.74/927.70 = 525.32/x
  3. Step 3: Cross multiply
    672.74x = 927.70 × 525.32
  4. Step 4: Simplify right side
    672.74x = 487,339.36
  5. Step 5: Solve for x
    x = 487,339.36/672.74
  6. Step 6: Final answer
    x = 724.41

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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.