Home / 438,938.32-605,784.20-247,964.08

Finding the Fourth Proportional to 438,938.32, 605,784.20 and 247,964.08

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Solution

The fourth proportional to 438,938.32, 605,784.20 and 247,964.08 is: 342,218.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,938.32 : 605,784.20 = 247,964.08 : x
  2. Step 2: Convert to fraction form
    438,938.32/605,784.20 = 247,964.08/x
  3. Step 3: Cross multiply
    438,938.32x = 605,784.20 × 247,964.08
  4. Step 4: Simplify right side
    438,938.32x = 150,212,721,831.54
  5. Step 5: Solve for x
    x = 150,212,721,831.54/438,938.32
  6. Step 6: Final answer
    x = 342,218.29

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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.