Home / 778,208.75-1,073,928.08-438,677

Finding the Fourth Proportional to 778,208.75, 1,073,928.08 and 438,677

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Solution

The fourth proportional to 778,208.75, 1,073,928.08 and 438,677 is: 605,374.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,208.75 : 1,073,928.08 = 438,677 : x
  2. Step 2: Convert to fraction form
    778,208.75/1,073,928.08 = 438,677/x
  3. Step 3: Cross multiply
    778,208.75x = 1,073,928.08 × 438,677
  4. Step 4: Simplify right side
    778,208.75x = 471,107,546,156.78
  5. Step 5: Solve for x
    x = 471,107,546,156.78/778,208.75
  6. Step 6: Final answer
    x = 605,374.26

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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.