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Finding the Fourth Proportional to 426,044.94, 590,427.47 and 420,031.50

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Solution

The fourth proportional to 426,044.94, 590,427.47 and 420,031.50 is: 582,093.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,044.94 : 590,427.47 = 420,031.50 : x
  2. Step 2: Convert to fraction form
    426,044.94/590,427.47 = 420,031.50/x
  3. Step 3: Cross multiply
    426,044.94x = 590,427.47 × 420,031.50
  4. Step 4: Simplify right side
    426,044.94x = 247,998,133,765.15
  5. Step 5: Solve for x
    x = 247,998,133,765.15/426,044.94
  6. Step 6: Final answer
    x = 582,093.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.