Home / 806,223.75-1,112,574.68-438,688.47

Finding the Fourth Proportional to 806,223.75, 1,112,574.68 and 438,688.47

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Solution

The fourth proportional to 806,223.75, 1,112,574.68 and 438,688.47 is: 605,382.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,223.75 : 1,112,574.68 = 438,688.47 : x
  2. Step 2: Convert to fraction form
    806,223.75/1,112,574.68 = 438,688.47/x
  3. Step 3: Cross multiply
    806,223.75x = 1,112,574.68 × 438,688.47
  4. Step 4: Simplify right side
    806,223.75x = 488,073,687,753.73
  5. Step 5: Solve for x
    x = 488,073,687,753.73/806,223.75
  6. Step 6: Final answer
    x = 605,382.43

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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.