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Finding the Fourth Proportional to 578,493.32, 798,366.85 and 426,227.09

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Solution

The fourth proportional to 578,493.32, 798,366.85 and 426,227.09 is: 588,227.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,493.32 : 798,366.85 = 426,227.09 : x
  2. Step 2: Convert to fraction form
    578,493.32/798,366.85 = 426,227.09/x
  3. Step 3: Cross multiply
    578,493.32x = 798,366.85 × 426,227.09
  4. Step 4: Simplify right side
    578,493.32x = 340,285,574,170.57
  5. Step 5: Solve for x
    x = 340,285,574,170.57/578,493.32
  6. Step 6: Final answer
    x = 588,227.32

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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.