Home / 845,485.20-1,268,227.80-284,461.20

Finding the Fourth Proportional to 845,485.20, 1,268,227.80 and 284,461.20

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Solution

The fourth proportional to 845,485.20, 1,268,227.80 and 284,461.20 is: 426,691.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,485.20 : 1,268,227.80 = 284,461.20 : x
  2. Step 2: Convert to fraction form
    845,485.20/1,268,227.80 = 284,461.20/x
  3. Step 3: Cross multiply
    845,485.20x = 1,268,227.80 × 284,461.20
  4. Step 4: Simplify right side
    845,485.20x = 360,761,601,861.36
  5. Step 5: Solve for x
    x = 360,761,601,861.36/845,485.20
  6. Step 6: Final answer
    x = 426,691.80

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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.