Home / 403,914.15-605,900.03-123,430.95

Finding the Fourth Proportional to 403,914.15, 605,900.03 and 123,430.95

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Solution

The fourth proportional to 403,914.15, 605,900.03 and 123,430.95 is: 185,155.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,914.15 : 605,900.03 = 123,430.95 : x
  2. Step 2: Convert to fraction form
    403,914.15/605,900.03 = 123,430.95/x
  3. Step 3: Cross multiply
    403,914.15x = 605,900.03 × 123,430.95
  4. Step 4: Simplify right side
    403,914.15x = 74,786,815,690.77
  5. Step 5: Solve for x
    x = 74,786,815,690.77/403,914.15
  6. Step 6: Final answer
    x = 185,155.23

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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.