Home / 391,923.32-587,848.52-107,603.60

Finding the Fourth Proportional to 391,923.32, 587,848.52 and 107,603.60

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Solution

The fourth proportional to 391,923.32, 587,848.52 and 107,603.60 is: 161,395.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,923.32 : 587,848.52 = 107,603.60 : x
  2. Step 2: Convert to fraction form
    391,923.32/587,848.52 = 107,603.60/x
  3. Step 3: Cross multiply
    391,923.32x = 587,848.52 × 107,603.60
  4. Step 4: Simplify right side
    391,923.32x = 63,254,617,006.67
  5. Step 5: Solve for x
    x = 63,254,617,006.67/391,923.32
  6. Step 6: Final answer
    x = 161,395.39

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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.