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Finding the Fourth Proportional to 973.92, 1,460.88 and 486.48

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Solution

The fourth proportional to 973.92, 1,460.88 and 486.48 is: 729.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    973.92 : 1,460.88 = 486.48 : x
  2. Step 2: Convert to fraction form
    973.92/1,460.88 = 486.48/x
  3. Step 3: Cross multiply
    973.92x = 1,460.88 × 486.48
  4. Step 4: Simplify right side
    973.92x = 710,688.90
  5. Step 5: Solve for x
    x = 710,688.90/973.92
  6. Step 6: Final answer
    x = 729.72

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.