Home / 878,433.95-1,212,188.52-485,943.46

Finding the Fourth Proportional to 878,433.95, 1,212,188.52 and 485,943.46

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Solution

The fourth proportional to 878,433.95, 1,212,188.52 and 485,943.46 is: 670,574.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,433.95 : 1,212,188.52 = 485,943.46 : x
  2. Step 2: Convert to fraction form
    878,433.95/1,212,188.52 = 485,943.46/x
  3. Step 3: Cross multiply
    878,433.95x = 1,212,188.52 × 485,943.46
  4. Step 4: Simplify right side
    878,433.95x = 589,055,083,581.08
  5. Step 5: Solve for x
    x = 589,055,083,581.08/878,433.95
  6. Step 6: Final answer
    x = 670,574.13

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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.