Home / 445,849.11-669,047.04-256,549.68

Finding the Fourth Proportional to 445,849.11, 669,047.04 and 256,549.68

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Solution

The fourth proportional to 445,849.11, 669,047.04 and 256,549.68 is: 384,981.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,849.11 : 669,047.04 = 256,549.68 : x
  2. Step 2: Convert to fraction form
    445,849.11/669,047.04 = 256,549.68/x
  3. Step 3: Cross multiply
    445,849.11x = 669,047.04 × 256,549.68
  4. Step 4: Simplify right side
    445,849.11x = 171,643,804,016.95
  5. Step 5: Solve for x
    x = 171,643,804,016.95/445,849.11
  6. Step 6: Final answer
    x = 384,981.82

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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.