Home / 669,041.11-1,002,140.09-453,031.12

Finding the Fourth Proportional to 669,041.11, 1,002,140.09 and 453,031.12

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Solution

The fourth proportional to 669,041.11, 1,002,140.09 and 453,031.12 is: 678,584.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,041.11 : 1,002,140.09 = 453,031.12 : x
  2. Step 2: Convert to fraction form
    669,041.11/1,002,140.09 = 453,031.12/x
  3. Step 3: Cross multiply
    669,041.11x = 1,002,140.09 × 453,031.12
  4. Step 4: Simplify right side
    669,041.11x = 454,000,640,093.75
  5. Step 5: Solve for x
    x = 454,000,640,093.75/669,041.11
  6. Step 6: Final answer
    x = 678,584.08

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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.