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Finding the Fourth Proportional to 973.35, 1,459.67 and 425.25

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Solution

The fourth proportional to 973.35, 1,459.67 and 425.25 is: 637.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    973.35 : 1,459.67 = 425.25 : x
  2. Step 2: Convert to fraction form
    973.35/1,459.67 = 425.25/x
  3. Step 3: Cross multiply
    973.35x = 1,459.67 × 425.25
  4. Step 4: Simplify right side
    973.35x = 620,722.54
  5. Step 5: Solve for x
    x = 620,722.54/973.35
  6. Step 6: Final answer
    x = 637.72

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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.