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Finding the Fourth Proportional to 973.85, 1,459.85 and 453.59

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Solution

The fourth proportional to 973.85, 1,459.85 and 453.59 is: 679.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    973.85 : 1,459.85 = 453.59 : x
  2. Step 2: Convert to fraction form
    973.85/1,459.85 = 453.59/x
  3. Step 3: Cross multiply
    973.85x = 1,459.85 × 453.59
  4. Step 4: Simplify right side
    973.85x = 662,173.36
  5. Step 5: Solve for x
    x = 662,173.36/973.85
  6. Step 6: Final answer
    x = 679.95

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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.