Home / 423,721.46-635,583.24-103,874.74

Finding the Fourth Proportional to 423,721.46, 635,583.24 and 103,874.74

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Solution

The fourth proportional to 423,721.46, 635,583.24 and 103,874.74 is: 155,812.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,721.46 : 635,583.24 = 103,874.74 : x
  2. Step 2: Convert to fraction form
    423,721.46/635,583.24 = 103,874.74/x
  3. Step 3: Cross multiply
    423,721.46x = 635,583.24 × 103,874.74
  4. Step 4: Simplify right side
    423,721.46x = 66,021,042,214.40
  5. Step 5: Solve for x
    x = 66,021,042,214.40/423,721.46
  6. Step 6: Final answer
    x = 155,812.36

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1.5x scale

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.