Home / 898,313.20-1,347,469.80-425,921.20

Finding the Fourth Proportional to 898,313.20, 1,347,469.80 and 425,921.20

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Solution

The fourth proportional to 898,313.20, 1,347,469.80 and 425,921.20 is: 638,881.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,313.20 : 1,347,469.80 = 425,921.20 : x
  2. Step 2: Convert to fraction form
    898,313.20/1,347,469.80 = 425,921.20/x
  3. Step 3: Cross multiply
    898,313.20x = 1,347,469.80 × 425,921.20
  4. Step 4: Simplify right side
    898,313.20x = 573,915,954,179.76
  5. Step 5: Solve for x
    x = 573,915,954,179.76/898,313.20
  6. Step 6: Final answer
    x = 638,881.80

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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.