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Finding the Fourth Proportional to 636,471.84, 878,330.07 and 364,627.74

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Solution

The fourth proportional to 636,471.84, 878,330.07 and 364,627.74 is: 503,185.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,471.84 : 878,330.07 = 364,627.74 : x
  2. Step 2: Convert to fraction form
    636,471.84/878,330.07 = 364,627.74/x
  3. Step 3: Cross multiply
    636,471.84x = 878,330.07 × 364,627.74
  4. Step 4: Simplify right side
    636,471.84x = 320,263,508,398.14
  5. Step 5: Solve for x
    x = 320,263,508,398.14/636,471.84
  6. Step 6: Final answer
    x = 503,185.67

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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.