Home / 653,729.40-902,524.68-427,768.56

Finding the Fourth Proportional to 653,729.40, 902,524.68 and 427,768.56

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Solution

The fourth proportional to 653,729.40, 902,524.68 and 427,768.56 is: 590,568.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,729.40 : 902,524.68 = 427,768.56 : x
  2. Step 2: Convert to fraction form
    653,729.40/902,524.68 = 427,768.56/x
  3. Step 3: Cross multiply
    653,729.40x = 902,524.68 × 427,768.56
  4. Step 4: Simplify right side
    653,729.40x = 386,071,682,728.06
  5. Step 5: Solve for x
    x = 386,071,682,728.06/653,729.40
  6. Step 6: Final answer
    x = 590,568.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.