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Finding the Fourth Proportional to 973.90, 1,461.06 and 325.10

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Solution

The fourth proportional to 973.90, 1,461.06 and 325.10 is: 487.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    973.90 : 1,461.06 = 325.10 : x
  2. Step 2: Convert to fraction form
    973.90/1,461.06 = 325.10/x
  3. Step 3: Cross multiply
    973.90x = 1,461.06 × 325.10
  4. Step 4: Simplify right side
    973.90x = 474,990.61
  5. Step 5: Solve for x
    x = 474,990.61/973.90
  6. Step 6: Final answer
    x = 487.72

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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.