Home / 778,108.34-1,073,797.68-438,576.60

Finding the Fourth Proportional to 778,108.34, 1,073,797.68 and 438,576.60

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Solution

The fourth proportional to 778,108.34, 1,073,797.68 and 438,576.60 is: 605,240.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,108.34 : 1,073,797.68 = 438,576.60 : x
  2. Step 2: Convert to fraction form
    778,108.34/1,073,797.68 = 438,576.60/x
  3. Step 3: Cross multiply
    778,108.34x = 1,073,797.68 × 438,576.60
  4. Step 4: Simplify right side
    778,108.34x = 470,942,535,582.29
  5. Step 5: Solve for x
    x = 470,942,535,582.29/778,108.34
  6. Step 6: Final answer
    x = 605,240.31

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Double scale
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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.