Home / 1,187,993.32-1,781,809.53-389,257.18

Finding the Fourth Proportional to 1,187,993.32, 1,781,809.53 and 389,257.18

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Solution

The fourth proportional to 1,187,993.32, 1,781,809.53 and 389,257.18 is: 583,826.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,993.32 : 1,781,809.53 = 389,257.18 : x
  2. Step 2: Convert to fraction form
    1,187,993.32/1,781,809.53 = 389,257.18/x
  3. Step 3: Cross multiply
    1,187,993.32x = 1,781,809.53 × 389,257.18
  4. Step 4: Simplify right side
    1,187,993.32x = 693,582,152,944.93
  5. Step 5: Solve for x
    x = 693,582,152,944.93/1,187,993.32
  6. Step 6: Final answer
    x = 583,826.64

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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.