Home / 988,340.43-1,482,879.66-389,718.84

Finding the Fourth Proportional to 988,340.43, 1,482,879.66 and 389,718.84

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Solution

The fourth proportional to 988,340.43, 1,482,879.66 and 389,718.84 is: 584,723.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,340.43 : 1,482,879.66 = 389,718.84 : x
  2. Step 2: Convert to fraction form
    988,340.43/1,482,879.66 = 389,718.84/x
  3. Step 3: Cross multiply
    988,340.43x = 1,482,879.66 × 389,718.84
  4. Step 4: Simplify right side
    988,340.43x = 577,906,145,054.15
  5. Step 5: Solve for x
    x = 577,906,145,054.15/988,340.43
  6. Step 6: Final answer
    x = 584,723.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.