Home / 423,427.05-635,076.18-123,827.49

Finding the Fourth Proportional to 423,427.05, 635,076.18 and 123,827.49

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Solution

The fourth proportional to 423,427.05, 635,076.18 and 123,827.49 is: 185,722.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,427.05 : 635,076.18 = 123,827.49 : x
  2. Step 2: Convert to fraction form
    423,427.05/635,076.18 = 123,827.49/x
  3. Step 3: Cross multiply
    423,427.05x = 635,076.18 × 123,827.49
  4. Step 4: Simplify right side
    423,427.05x = 78,639,889,328.19
  5. Step 5: Solve for x
    x = 78,639,889,328.19/423,427.05
  6. Step 6: Final answer
    x = 185,722.40

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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.