Home / 945,900.90-1,418,851.35-281,052.90

Finding the Fourth Proportional to 945,900.90, 1,418,851.35 and 281,052.90

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Solution

The fourth proportional to 945,900.90, 1,418,851.35 and 281,052.90 is: 421,579.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,900.90 : 1,418,851.35 = 281,052.90 : x
  2. Step 2: Convert to fraction form
    945,900.90/1,418,851.35 = 281,052.90/x
  3. Step 3: Cross multiply
    945,900.90x = 1,418,851.35 × 281,052.90
  4. Step 4: Simplify right side
    945,900.90x = 398,772,286,586.42
  5. Step 5: Solve for x
    x = 398,772,286,586.42/945,900.90
  6. Step 6: Final answer
    x = 421,579.35

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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.