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Finding the Fourth Proportional to 636,713.73, 878,646.44 and 350,233.74

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Solution

The fourth proportional to 636,713.73, 878,646.44 and 350,233.74 is: 483,312.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,713.73 : 878,646.44 = 350,233.74 : x
  2. Step 2: Convert to fraction form
    636,713.73/878,646.44 = 350,233.74/x
  3. Step 3: Cross multiply
    636,713.73x = 878,646.44 × 350,233.74
  4. Step 4: Simplify right side
    636,713.73x = 307,731,627,724.41
  5. Step 5: Solve for x
    x = 307,731,627,724.41/636,713.73
  6. Step 6: Final answer
    x = 483,312.38

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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.