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Finding the Fourth Proportional to 665,013.30, 996,839.55 and 327,534.90

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Solution

The fourth proportional to 665,013.30, 996,839.55 and 327,534.90 is: 490,967.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,013.30 : 996,839.55 = 327,534.90 : x
  2. Step 2: Convert to fraction form
    665,013.30/996,839.55 = 327,534.90/x
  3. Step 3: Cross multiply
    665,013.30x = 996,839.55 × 327,534.90
  4. Step 4: Simplify right side
    665,013.30x = 326,499,742,325.30
  5. Step 5: Solve for x
    x = 326,499,742,325.30/665,013.30
  6. Step 6: Final answer
    x = 490,967.24

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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.