Home / 815,837.00-1,223,409.52-388,878.92

Finding the Fourth Proportional to 815,837.00, 1,223,409.52 and 388,878.92

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Solution

The fourth proportional to 815,837.00, 1,223,409.52 and 388,878.92 is: 583,153.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,837.00 : 1,223,409.52 = 388,878.92 : x
  2. Step 2: Convert to fraction form
    815,837.00/1,223,409.52 = 388,878.92/x
  3. Step 3: Cross multiply
    815,837.00x = 1,223,409.52 × 388,878.92
  4. Step 4: Simplify right side
    815,837.00x = 475,758,165,766.07
  5. Step 5: Solve for x
    x = 475,758,165,766.07/815,837.00
  6. Step 6: Final answer
    x = 583,153.45

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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.