Home / 778,495.59-1,074,324.06-438,963.84

Finding the Fourth Proportional to 778,495.59, 1,074,324.06 and 438,963.84

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Solution

The fourth proportional to 778,495.59, 1,074,324.06 and 438,963.84 is: 605,770.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,495.59 : 1,074,324.06 = 438,963.84 : x
  2. Step 2: Convert to fraction form
    778,495.59/1,074,324.06 = 438,963.84/x
  3. Step 3: Cross multiply
    778,495.59x = 1,074,324.06 × 438,963.84
  4. Step 4: Simplify right side
    778,495.59x = 471,589,414,781.99
  5. Step 5: Solve for x
    x = 471,589,414,781.99/778,495.59
  6. Step 6: Final answer
    x = 605,770.18

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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.