Home / 890,255.40-1,228,612.72-502,936.48

Finding the Fourth Proportional to 890,255.40, 1,228,612.72 and 502,936.48

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Solution

The fourth proportional to 890,255.40, 1,228,612.72 and 502,936.48 is: 694,086.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,255.40 : 1,228,612.72 = 502,936.48 : x
  2. Step 2: Convert to fraction form
    890,255.40/1,228,612.72 = 502,936.48/x
  3. Step 3: Cross multiply
    890,255.40x = 1,228,612.72 × 502,936.48
  4. Step 4: Simplify right side
    890,255.40x = 617,914,156,680.03
  5. Step 5: Solve for x
    x = 617,914,156,680.03/890,255.40
  6. Step 6: Final answer
    x = 694,086.39

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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.