Home / 778,211.82-1,073,934.09-438,680.07

Finding the Fourth Proportional to 778,211.82, 1,073,934.09 and 438,680.07

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Solution

The fourth proportional to 778,211.82, 1,073,934.09 and 438,680.07 is: 605,379.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,211.82 : 1,073,934.09 = 438,680.07 : x
  2. Step 2: Convert to fraction form
    778,211.82/1,073,934.09 = 438,680.07/x
  3. Step 3: Cross multiply
    778,211.82x = 1,073,934.09 × 438,680.07
  4. Step 4: Simplify right side
    778,211.82x = 471,113,482,816.37
  5. Step 5: Solve for x
    x = 471,113,482,816.37/778,211.82
  6. Step 6: Final answer
    x = 605,379.50

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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.