Home / 877,677.39-1,316,561.72-278,685.50

Finding the Fourth Proportional to 877,677.39, 1,316,561.72 and 278,685.50

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Solution

The fourth proportional to 877,677.39, 1,316,561.72 and 278,685.50 is: 418,042.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,677.39 : 1,316,561.72 = 278,685.50 : x
  2. Step 2: Convert to fraction form
    877,677.39/1,316,561.72 = 278,685.50/x
  3. Step 3: Cross multiply
    877,677.39x = 1,316,561.72 × 278,685.50
  4. Step 4: Simplify right side
    877,677.39x = 366,906,653,242.82
  5. Step 5: Solve for x
    x = 366,906,653,242.82/877,677.39
  6. Step 6: Final answer
    x = 418,042.73

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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.