Home / 730,742.40-1,096,113.60-257,961.60

Finding the Fourth Proportional to 730,742.40, 1,096,113.60 and 257,961.60

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Solution

The fourth proportional to 730,742.40, 1,096,113.60 and 257,961.60 is: 386,942.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,742.40 : 1,096,113.60 = 257,961.60 : x
  2. Step 2: Convert to fraction form
    730,742.40/1,096,113.60 = 257,961.60/x
  3. Step 3: Cross multiply
    730,742.40x = 1,096,113.60 × 257,961.60
  4. Step 4: Simplify right side
    730,742.40x = 282,755,218,037.76
  5. Step 5: Solve for x
    x = 282,755,218,037.76/730,742.40
  6. Step 6: Final answer
    x = 386,942.40

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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.