Home / 767,999.20-1,151,998.80-207,090.40

Finding the Fourth Proportional to 767,999.20, 1,151,998.80 and 207,090.40

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Solution

The fourth proportional to 767,999.20, 1,151,998.80 and 207,090.40 is: 310,635.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,999.20 : 1,151,998.80 = 207,090.40 : x
  2. Step 2: Convert to fraction form
    767,999.20/1,151,998.80 = 207,090.40/x
  3. Step 3: Cross multiply
    767,999.20x = 1,151,998.80 × 207,090.40
  4. Step 4: Simplify right side
    767,999.20x = 238,567,892,291.52
  5. Step 5: Solve for x
    x = 238,567,892,291.52/767,999.20
  6. Step 6: Final answer
    x = 310,635.60

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Similar ratio
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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.