Home / 771,377.33-1,064,471.31-422,512.20

Finding the Fourth Proportional to 771,377.33, 1,064,471.31 and 422,512.20

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Solution

The fourth proportional to 771,377.33, 1,064,471.31 and 422,512.20 is: 583,050.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,377.33 : 1,064,471.31 = 422,512.20 : x
  2. Step 2: Convert to fraction form
    771,377.33/1,064,471.31 = 422,512.20/x
  3. Step 3: Cross multiply
    771,377.33x = 1,064,471.31 × 422,512.20
  4. Step 4: Simplify right side
    771,377.33x = 449,752,115,024.98
  5. Step 5: Solve for x
    x = 449,752,115,024.98/771,377.33
  6. Step 6: Final answer
    x = 583,050.73

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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.