Home / 1,259,277.20-1,889,376.60-511,398.80

Finding the Fourth Proportional to 1,259,277.20, 1,889,376.60 and 511,398.80

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Solution

The fourth proportional to 1,259,277.20, 1,889,376.60 and 511,398.80 is: 767,285.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,277.20 : 1,889,376.60 = 511,398.80 : x
  2. Step 2: Convert to fraction form
    1,259,277.20/1,889,376.60 = 511,398.80/x
  3. Step 3: Cross multiply
    1,259,277.20x = 1,889,376.60 × 511,398.80
  4. Step 4: Simplify right side
    1,259,277.20x = 966,224,925,988.08
  5. Step 5: Solve for x
    x = 966,224,925,988.08/1,259,277.20
  6. Step 6: Final answer
    x = 767,285.33

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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.