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Finding the Fourth Proportional to 578,454.39, 798,257.05 and 320,326.22

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Solution

The fourth proportional to 578,454.39, 798,257.05 and 320,326.22 is: 442,044.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,454.39 : 798,257.05 = 320,326.22 : x
  2. Step 2: Convert to fraction form
    578,454.39/798,257.05 = 320,326.22/x
  3. Step 3: Cross multiply
    578,454.39x = 798,257.05 × 320,326.22
  4. Step 4: Simplify right side
    578,454.39x = 255,702,664,609.68
  5. Step 5: Solve for x
    x = 255,702,664,609.68/578,454.39
  6. Step 6: Final answer
    x = 442,044.64

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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.