Home / 877,781.66-1,316,718.07-278,789.69

Finding the Fourth Proportional to 877,781.66, 1,316,718.07 and 278,789.69

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Solution

The fourth proportional to 877,781.66, 1,316,718.07 and 278,789.69 is: 418,199.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,781.66 : 1,316,718.07 = 278,789.69 : x
  2. Step 2: Convert to fraction form
    877,781.66/1,316,718.07 = 278,789.69/x
  3. Step 3: Cross multiply
    877,781.66x = 1,316,718.07 × 278,789.69
  4. Step 4: Simplify right side
    877,781.66x = 367,087,425,147.52
  5. Step 5: Solve for x
    x = 367,087,425,147.52/877,781.66
  6. Step 6: Final answer
    x = 418,199.02

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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.