Home / 1,207,439.12-1,811,220.69-308,888.61

Finding the Fourth Proportional to 1,207,439.12, 1,811,220.69 and 308,888.61

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Solution

The fourth proportional to 1,207,439.12, 1,811,220.69 and 308,888.61 is: 463,348.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,439.12 : 1,811,220.69 = 308,888.61 : x
  2. Step 2: Convert to fraction form
    1,207,439.12/1,811,220.69 = 308,888.61/x
  3. Step 3: Cross multiply
    1,207,439.12x = 1,811,220.69 × 308,888.61
  4. Step 4: Simplify right side
    1,207,439.12x = 559,465,441,337.34
  5. Step 5: Solve for x
    x = 559,465,441,337.34/1,207,439.12
  6. Step 6: Final answer
    x = 463,348.78

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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.