Home / 1,040,608.80-1,562,756.40-760,442.40

Finding the Fourth Proportional to 1,040,608.80, 1,562,756.40 and 760,442.40

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Solution

The fourth proportional to 1,040,608.80, 1,562,756.40 and 760,442.40 is: 1,142,010.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,608.80 : 1,562,756.40 = 760,442.40 : x
  2. Step 2: Convert to fraction form
    1,040,608.80/1,562,756.40 = 760,442.40/x
  3. Step 3: Cross multiply
    1,040,608.80x = 1,562,756.40 × 760,442.40
  4. Step 4: Simplify right side
    1,040,608.80x = 1,188,386,227,431.36
  5. Step 5: Solve for x
    x = 1,188,386,227,431.36/1,040,608.80
  6. Step 6: Final answer
    x = 1,142,010.55

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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.