Home / 719,258.12-992,571.32-396,968.22

Finding the Fourth Proportional to 719,258.12, 992,571.32 and 396,968.22

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Solution

The fourth proportional to 719,258.12, 992,571.32 and 396,968.22 is: 547,813.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,258.12 : 992,571.32 = 396,968.22 : x
  2. Step 2: Convert to fraction form
    719,258.12/992,571.32 = 396,968.22/x
  3. Step 3: Cross multiply
    719,258.12x = 992,571.32 × 396,968.22
  4. Step 4: Simplify right side
    719,258.12x = 394,019,268,138.61
  5. Step 5: Solve for x
    x = 394,019,268,138.61/719,258.12
  6. Step 6: Final answer
    x = 547,813.45

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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.