Home / 878,432.95-1,212,187.14-485,942.46

Finding the Fourth Proportional to 878,432.95, 1,212,187.14 and 485,942.46

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Solution

The fourth proportional to 878,432.95, 1,212,187.14 and 485,942.46 is: 670,572.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,432.95 : 1,212,187.14 = 485,942.46 : x
  2. Step 2: Convert to fraction form
    878,432.95/1,212,187.14 = 485,942.46/x
  3. Step 3: Cross multiply
    878,432.95x = 1,212,187.14 × 485,942.46
  4. Step 4: Simplify right side
    878,432.95x = 589,053,200,791.96
  5. Step 5: Solve for x
    x = 589,053,200,791.96/878,432.95
  6. Step 6: Final answer
    x = 670,572.75

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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.