Home / 1,259,442.42-1,888,230.51-760,689.78

Finding the Fourth Proportional to 1,259,442.42, 1,888,230.51 and 760,689.78

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Solution

The fourth proportional to 1,259,442.42, 1,888,230.51 and 760,689.78 is: 1,140,471.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,442.42 : 1,888,230.51 = 760,689.78 : x
  2. Step 2: Convert to fraction form
    1,259,442.42/1,888,230.51 = 760,689.78/x
  3. Step 3: Cross multiply
    1,259,442.42x = 1,888,230.51 × 760,689.78
  4. Step 4: Simplify right side
    1,259,442.42x = 1,436,357,651,241.19
  5. Step 5: Solve for x
    x = 1,436,357,651,241.19/1,259,442.42
  6. Step 6: Final answer
    x = 1,140,471.08

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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.