Home / 1,327,351.40-1,991,034.30-330,079.40

Finding the Fourth Proportional to 1,327,351.40, 1,991,034.30 and 330,079.40

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Solution

The fourth proportional to 1,327,351.40, 1,991,034.30 and 330,079.40 is: 495,120.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,351.40 : 1,991,034.30 = 330,079.40 : x
  2. Step 2: Convert to fraction form
    1,327,351.40/1,991,034.30 = 330,079.40/x
  3. Step 3: Cross multiply
    1,327,351.40x = 1,991,034.30 × 330,079.40
  4. Step 4: Simplify right side
    1,327,351.40x = 657,199,407,123.42
  5. Step 5: Solve for x
    x = 657,199,407,123.42/1,327,351.40
  6. Step 6: Final answer
    x = 495,120.89

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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.