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Finding the Fourth Proportional to 975.04, 1,462.76 and 325.78

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Solution

The fourth proportional to 975.04, 1,462.76 and 325.78 is: 488.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    975.04 : 1,462.76 = 325.78 : x
  2. Step 2: Convert to fraction form
    975.04/1,462.76 = 325.78/x
  3. Step 3: Cross multiply
    975.04x = 1,462.76 × 325.78
  4. Step 4: Simplify right side
    975.04x = 476,537.95
  5. Step 5: Solve for x
    x = 476,537.95/975.04
  6. Step 6: Final answer
    x = 488.74

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Double scale
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1.5x scale

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.