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Finding the Fourth Proportional to 424,843.78, 586,215.81 and 243,522.34

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Solution

The fourth proportional to 424,843.78, 586,215.81 and 243,522.34 is: 336,021.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,843.78 : 586,215.81 = 243,522.34 : x
  2. Step 2: Convert to fraction form
    424,843.78/586,215.81 = 243,522.34/x
  3. Step 3: Cross multiply
    424,843.78x = 586,215.81 × 243,522.34
  4. Step 4: Simplify right side
    424,843.78x = 142,756,645,796.20
  5. Step 5: Solve for x
    x = 142,756,645,796.20/424,843.78
  6. Step 6: Final answer
    x = 336,021.50

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1.5x scale

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.