Home / 945,552.40-1,418,328.60-280,704.40

Finding the Fourth Proportional to 945,552.40, 1,418,328.60 and 280,704.40

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Solution

The fourth proportional to 945,552.40, 1,418,328.60 and 280,704.40 is: 421,056.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,552.40 : 1,418,328.60 = 280,704.40 : x
  2. Step 2: Convert to fraction form
    945,552.40/1,418,328.60 = 280,704.40/x
  3. Step 3: Cross multiply
    945,552.40x = 1,418,328.60 × 280,704.40
  4. Step 4: Simplify right side
    945,552.40x = 398,131,078,665.84
  5. Step 5: Solve for x
    x = 398,131,078,665.84/945,552.40
  6. Step 6: Final answer
    x = 421,056.60

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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.