Home / 423,623.68-635,581.30-265,667.20

Finding the Fourth Proportional to 423,623.68, 635,581.30 and 265,667.20

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Solution

The fourth proportional to 423,623.68, 635,581.30 and 265,667.20 is: 398,592.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,623.68 : 635,581.30 = 265,667.20 : x
  2. Step 2: Convert to fraction form
    423,623.68/635,581.30 = 265,667.20/x
  3. Step 3: Cross multiply
    423,623.68x = 635,581.30 × 265,667.20
  4. Step 4: Simplify right side
    423,623.68x = 168,853,104,343.36
  5. Step 5: Solve for x
    x = 168,853,104,343.36/423,623.68
  6. Step 6: Final answer
    x = 398,592.22

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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.