Home / 753,090.40-1,129,635.60-453,908.80

Finding the Fourth Proportional to 753,090.40, 1,129,635.60 and 453,908.80

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Solution

The fourth proportional to 753,090.40, 1,129,635.60 and 453,908.80 is: 680,863.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,090.40 : 1,129,635.60 = 453,908.80 : x
  2. Step 2: Convert to fraction form
    753,090.40/1,129,635.60 = 453,908.80/x
  3. Step 3: Cross multiply
    753,090.40x = 1,129,635.60 × 453,908.80
  4. Step 4: Simplify right side
    753,090.40x = 512,751,539,633.28
  5. Step 5: Solve for x
    x = 512,751,539,633.28/753,090.40
  6. Step 6: Final answer
    x = 680,863.20

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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.