Home / 778,091.68-1,073,774.72-438,559.93

Finding the Fourth Proportional to 778,091.68, 1,073,774.72 and 438,559.93

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Solution

The fourth proportional to 778,091.68, 1,073,774.72 and 438,559.93 is: 605,217.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,091.68 : 1,073,774.72 = 438,559.93 : x
  2. Step 2: Convert to fraction form
    778,091.68/1,073,774.72 = 438,559.93/x
  3. Step 3: Cross multiply
    778,091.68x = 1,073,774.72 × 438,559.93
  4. Step 4: Simplify right side
    778,091.68x = 470,914,558,477.30
  5. Step 5: Solve for x
    x = 470,914,558,477.30/778,091.68
  6. Step 6: Final answer
    x = 605,217.32

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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.