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Finding the Fourth Proportional to 426,392.56, 588,420.10 and 235,404.58

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Solution

The fourth proportional to 426,392.56, 588,420.10 and 235,404.58 is: 324,857.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,392.56 : 588,420.10 = 235,404.58 : x
  2. Step 2: Convert to fraction form
    426,392.56/588,420.10 = 235,404.58/x
  3. Step 3: Cross multiply
    426,392.56x = 588,420.10 × 235,404.58
  4. Step 4: Simplify right side
    426,392.56x = 138,516,785,106.40
  5. Step 5: Solve for x
    x = 138,516,785,106.40/426,392.56
  6. Step 6: Final answer
    x = 324,857.42

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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.