Home / 679,816.60-1,019,076.90-253,238.20

Finding the Fourth Proportional to 679,816.60, 1,019,076.90 and 253,238.20

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Solution

The fourth proportional to 679,816.60, 1,019,076.90 and 253,238.20 is: 379,615.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,816.60 : 1,019,076.90 = 253,238.20 : x
  2. Step 2: Convert to fraction form
    679,816.60/1,019,076.90 = 253,238.20/x
  3. Step 3: Cross multiply
    679,816.60x = 1,019,076.90 × 253,238.20
  4. Step 4: Simplify right side
    679,816.60x = 258,069,199,817.58
  5. Step 5: Solve for x
    x = 258,069,199,817.58/679,816.60
  6. Step 6: Final answer
    x = 379,615.91

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.