Home / 843,502.40-1,265,253.60-344,749.76

Finding the Fourth Proportional to 843,502.40, 1,265,253.60 and 344,749.76

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Solution

The fourth proportional to 843,502.40, 1,265,253.60 and 344,749.76 is: 517,124.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,502.40 : 1,265,253.60 = 344,749.76 : x
  2. Step 2: Convert to fraction form
    843,502.40/1,265,253.60 = 344,749.76/x
  3. Step 3: Cross multiply
    843,502.40x = 1,265,253.60 × 344,749.76
  4. Step 4: Simplify right side
    843,502.40x = 436,195,874,939.14
  5. Step 5: Solve for x
    x = 436,195,874,939.14/843,502.40
  6. Step 6: Final answer
    x = 517,124.64

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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.