Home / 457,331.49-682,734.56-426,939.64

Finding the Fourth Proportional to 457,331.49, 682,734.56 and 426,939.64

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Solution

The fourth proportional to 457,331.49, 682,734.56 and 426,939.64 is: 637,363.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,331.49 : 682,734.56 = 426,939.64 : x
  2. Step 2: Convert to fraction form
    457,331.49/682,734.56 = 426,939.64/x
  3. Step 3: Cross multiply
    457,331.49x = 682,734.56 × 426,939.64
  4. Step 4: Simplify right side
    457,331.49x = 291,486,447,261.96
  5. Step 5: Solve for x
    x = 291,486,447,261.96/457,331.49
  6. Step 6: Final answer
    x = 637,363.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.