Home / 877,908.29-1,316,864.11-338,418.61

Finding the Fourth Proportional to 877,908.29, 1,316,864.11 and 338,418.61

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Solution

The fourth proportional to 877,908.29, 1,316,864.11 and 338,418.61 is: 507,628.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,908.29 : 1,316,864.11 = 338,418.61 : x
  2. Step 2: Convert to fraction form
    877,908.29/1,316,864.11 = 338,418.61/x
  3. Step 3: Cross multiply
    877,908.29x = 1,316,864.11 × 338,418.61
  4. Step 4: Simplify right side
    877,908.29x = 445,651,325,568.78
  5. Step 5: Solve for x
    x = 445,651,325,568.78/877,908.29
  6. Step 6: Final answer
    x = 507,628.57

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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.