Home / 874,432.35-1,206,684.78-487,227.76

Finding the Fourth Proportional to 874,432.35, 1,206,684.78 and 487,227.76

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Solution

The fourth proportional to 874,432.35, 1,206,684.78 and 487,227.76 is: 672,356.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,432.35 : 1,206,684.78 = 487,227.76 : x
  2. Step 2: Convert to fraction form
    874,432.35/1,206,684.78 = 487,227.76/x
  3. Step 3: Cross multiply
    874,432.35x = 1,206,684.78 × 487,227.76
  4. Step 4: Simplify right side
    874,432.35x = 587,930,323,603.56
  5. Step 5: Solve for x
    x = 587,930,323,603.56/874,432.35
  6. Step 6: Final answer
    x = 672,356.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.