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Finding the Fourth Proportional to 973.31, 1,460.57 and 425.50

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Solution

The fourth proportional to 973.31, 1,460.57 and 425.50 is: 638.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    973.31 : 1,460.57 = 425.50 : x
  2. Step 2: Convert to fraction form
    973.31/1,460.57 = 425.50/x
  3. Step 3: Cross multiply
    973.31x = 1,460.57 × 425.50
  4. Step 4: Simplify right side
    973.31x = 621,472.54
  5. Step 5: Solve for x
    x = 621,472.54/973.31
  6. Step 6: Final answer
    x = 638.51

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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.