Home / 431,972.40-595,592.34-355,223.28

Finding the Fourth Proportional to 431,972.40, 595,592.34 and 355,223.28

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Solution

The fourth proportional to 431,972.40, 595,592.34 and 355,223.28 is: 489,772.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,972.40 : 595,592.34 = 355,223.28 : x
  2. Step 2: Convert to fraction form
    431,972.40/595,592.34 = 355,223.28/x
  3. Step 3: Cross multiply
    431,972.40x = 595,592.34 × 355,223.28
  4. Step 4: Simplify right side
    431,972.40x = 211,568,264,557.68
  5. Step 5: Solve for x
    x = 211,568,264,557.68/431,972.40
  6. Step 6: Final answer
    x = 489,772.64

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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.