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Finding the Fourth Proportional to 553,327.35, 763,581.38 and 338,451.63

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Solution

The fourth proportional to 553,327.35, 763,581.38 and 338,451.63 is: 467,056.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,327.35 : 763,581.38 = 338,451.63 : x
  2. Step 2: Convert to fraction form
    553,327.35/763,581.38 = 338,451.63/x
  3. Step 3: Cross multiply
    553,327.35x = 763,581.38 × 338,451.63
  4. Step 4: Simplify right side
    553,327.35x = 258,435,361,006.39
  5. Step 5: Solve for x
    x = 258,435,361,006.39/553,327.35
  6. Step 6: Final answer
    x = 467,056.91

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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.