Home / 778,101.08-1,073,787.66-438,569.33

Finding the Fourth Proportional to 778,101.08, 1,073,787.66 and 438,569.33

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Solution

The fourth proportional to 778,101.08, 1,073,787.66 and 438,569.33 is: 605,230.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,101.08 : 1,073,787.66 = 438,569.33 : x
  2. Step 2: Convert to fraction form
    778,101.08/1,073,787.66 = 438,569.33/x
  3. Step 3: Cross multiply
    778,101.08x = 1,073,787.66 × 438,569.33
  4. Step 4: Simplify right side
    778,101.08x = 470,930,329,239.53
  5. Step 5: Solve for x
    x = 470,930,329,239.53/778,101.08
  6. Step 6: Final answer
    x = 605,230.28

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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.