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Finding the Fourth Proportional to 975.04, 1,459.70 and 511.72

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Solution

The fourth proportional to 975.04, 1,459.70 and 511.72 is: 766.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    975.04 : 1,459.70 = 511.72 : x
  2. Step 2: Convert to fraction form
    975.04/1,459.70 = 511.72/x
  3. Step 3: Cross multiply
    975.04x = 1,459.70 × 511.72
  4. Step 4: Simplify right side
    975.04x = 746,957.68
  5. Step 5: Solve for x
    x = 746,957.68/975.04
  6. Step 6: Final answer
    x = 766.08

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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.