Home / 845,380.80-1,268,071.20-740,404.80

Finding the Fourth Proportional to 845,380.80, 1,268,071.20 and 740,404.80

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Solution

The fourth proportional to 845,380.80, 1,268,071.20 and 740,404.80 is: 1,110,607.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,380.80 : 1,268,071.20 = 740,404.80 : x
  2. Step 2: Convert to fraction form
    845,380.80/1,268,071.20 = 740,404.80/x
  3. Step 3: Cross multiply
    845,380.80x = 1,268,071.20 × 740,404.80
  4. Step 4: Simplify right side
    845,380.80x = 938,886,003,221.76
  5. Step 5: Solve for x
    x = 938,886,003,221.76/845,380.80
  6. Step 6: Final answer
    x = 1,110,607.20

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Double scale
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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.