Home / 778,837.68-1,168,327.80-217,870.56

Finding the Fourth Proportional to 778,837.68, 1,168,327.80 and 217,870.56

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Solution

The fourth proportional to 778,837.68, 1,168,327.80 and 217,870.56 is: 326,825.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,837.68 : 1,168,327.80 = 217,870.56 : x
  2. Step 2: Convert to fraction form
    778,837.68/1,168,327.80 = 217,870.56/x
  3. Step 3: Cross multiply
    778,837.68x = 1,168,327.80 × 217,870.56
  4. Step 4: Simplify right side
    778,837.68x = 254,544,232,049.57
  5. Step 5: Solve for x
    x = 254,544,232,049.57/778,837.68
  6. Step 6: Final answer
    x = 326,825.78

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1.5x scale

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.