Home / 1,329,422.45-1,993,715.40-430,655.66

Finding the Fourth Proportional to 1,329,422.45, 1,993,715.40 and 430,655.66

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Solution

The fourth proportional to 1,329,422.45, 1,993,715.40 and 430,655.66 is: 645,847.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,422.45 : 1,993,715.40 = 430,655.66 : x
  2. Step 2: Convert to fraction form
    1,329,422.45/1,993,715.40 = 430,655.66/x
  3. Step 3: Cross multiply
    1,329,422.45x = 1,993,715.40 × 430,655.66
  4. Step 4: Simplify right side
    1,329,422.45x = 858,604,811,470.59
  5. Step 5: Solve for x
    x = 858,604,811,470.59/1,329,422.45
  6. Step 6: Final answer
    x = 645,847.99

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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.