Home / 766,915.38-1,058,422.32-461,091.78

Finding the Fourth Proportional to 766,915.38, 1,058,422.32 and 461,091.78

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Solution

The fourth proportional to 766,915.38, 1,058,422.32 and 461,091.78 is: 636,354.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,915.38 : 1,058,422.32 = 461,091.78 : x
  2. Step 2: Convert to fraction form
    766,915.38/1,058,422.32 = 461,091.78/x
  3. Step 3: Cross multiply
    766,915.38x = 1,058,422.32 × 461,091.78
  4. Step 4: Simplify right side
    766,915.38x = 488,029,831,520.53
  5. Step 5: Solve for x
    x = 488,029,831,520.53/766,915.38
  6. Step 6: Final answer
    x = 636,354.21

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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.