Home / 958,778.43-1,438,717.13-390,054.56

Finding the Fourth Proportional to 958,778.43, 1,438,717.13 and 390,054.56

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Solution

The fourth proportional to 958,778.43, 1,438,717.13 and 390,054.56 is: 585,305.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,778.43 : 1,438,717.13 = 390,054.56 : x
  2. Step 2: Convert to fraction form
    958,778.43/1,438,717.13 = 390,054.56/x
  3. Step 3: Cross multiply
    958,778.43x = 1,438,717.13 × 390,054.56
  4. Step 4: Simplify right side
    958,778.43x = 561,178,167,962.75
  5. Step 5: Solve for x
    x = 561,178,167,962.75/958,778.43
  6. Step 6: Final answer
    x = 585,305.37

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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.