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Finding the Fourth Proportional to 636,727.59, 878,669.64 and 350,241.57

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Solution

The fourth proportional to 636,727.59, 878,669.64 and 350,241.57 is: 483,325.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,727.59 : 878,669.64 = 350,241.57 : x
  2. Step 2: Convert to fraction form
    636,727.59/878,669.64 = 350,241.57/x
  3. Step 3: Cross multiply
    636,727.59x = 878,669.64 × 350,241.57
  4. Step 4: Simplify right side
    636,727.59x = 307,746,634,224.94
  5. Step 5: Solve for x
    x = 307,746,634,224.94/636,727.59
  6. Step 6: Final answer
    x = 483,325.43

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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.