Home / 705,348.69-1,057,299.13-278,711.74

Finding the Fourth Proportional to 705,348.69, 1,057,299.13 and 278,711.74

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Solution

The fourth proportional to 705,348.69, 1,057,299.13 and 278,711.74 is: 417,781.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,348.69 : 1,057,299.13 = 278,711.74 : x
  2. Step 2: Convert to fraction form
    705,348.69/1,057,299.13 = 278,711.74/x
  3. Step 3: Cross multiply
    705,348.69x = 1,057,299.13 × 278,711.74
  4. Step 4: Simplify right side
    705,348.69x = 294,681,680,222.79
  5. Step 5: Solve for x
    x = 294,681,680,222.79/705,348.69
  6. Step 6: Final answer
    x = 417,781.57

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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.