Home / 919,248.40-1,378,872.60-254,400.40

Finding the Fourth Proportional to 919,248.40, 1,378,872.60 and 254,400.40

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Solution

The fourth proportional to 919,248.40, 1,378,872.60 and 254,400.40 is: 381,600.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,248.40 : 1,378,872.60 = 254,400.40 : x
  2. Step 2: Convert to fraction form
    919,248.40/1,378,872.60 = 254,400.40/x
  3. Step 3: Cross multiply
    919,248.40x = 1,378,872.60 × 254,400.40
  4. Step 4: Simplify right side
    919,248.40x = 350,785,740,989.04
  5. Step 5: Solve for x
    x = 350,785,740,989.04/919,248.40
  6. Step 6: Final answer
    x = 381,600.60

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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.