Home / 778,306.20-1,073,939.04-438,708.84

Finding the Fourth Proportional to 778,306.20, 1,073,939.04 and 438,708.84

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Solution

The fourth proportional to 778,306.20, 1,073,939.04 and 438,708.84 is: 605,348.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,306.20 : 1,073,939.04 = 438,708.84 : x
  2. Step 2: Convert to fraction form
    778,306.20/1,073,939.04 = 438,708.84/x
  3. Step 3: Cross multiply
    778,306.20x = 1,073,939.04 × 438,708.84
  4. Step 4: Simplify right side
    778,306.20x = 471,146,550,469.11
  5. Step 5: Solve for x
    x = 471,146,550,469.11/778,306.20
  6. Step 6: Final answer
    x = 605,348.58

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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.