Home / 816,540.12-1,225,011.12-284,065.77

Finding the Fourth Proportional to 816,540.12, 1,225,011.12 and 284,065.77

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Solution

The fourth proportional to 816,540.12, 1,225,011.12 and 284,065.77 is: 426,168.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,540.12 : 1,225,011.12 = 284,065.77 : x
  2. Step 2: Convert to fraction form
    816,540.12/1,225,011.12 = 284,065.77/x
  3. Step 3: Cross multiply
    816,540.12x = 1,225,011.12 × 284,065.77
  4. Step 4: Simplify right side
    816,540.12x = 347,983,727,061.36
  5. Step 5: Solve for x
    x = 347,983,727,061.36/816,540.12
  6. Step 6: Final answer
    x = 426,168.56

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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.