Home / 786,090.40-1,179,135.60-253,628.80

Finding the Fourth Proportional to 786,090.40, 1,179,135.60 and 253,628.80

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Solution

The fourth proportional to 786,090.40, 1,179,135.60 and 253,628.80 is: 380,443.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,090.40 : 1,179,135.60 = 253,628.80 : x
  2. Step 2: Convert to fraction form
    786,090.40/1,179,135.60 = 253,628.80/x
  3. Step 3: Cross multiply
    786,090.40x = 1,179,135.60 × 253,628.80
  4. Step 4: Simplify right side
    786,090.40x = 299,062,747,265.28
  5. Step 5: Solve for x
    x = 299,062,747,265.28/786,090.40
  6. Step 6: Final answer
    x = 380,443.20

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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.