Home / 1,007,663.97-1,390,634.77-758,860.61

Finding the Fourth Proportional to 1,007,663.97, 1,390,634.77 and 758,860.61

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Solution

The fourth proportional to 1,007,663.97, 1,390,634.77 and 758,860.61 is: 1,047,271.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,663.97 : 1,390,634.77 = 758,860.61 : x
  2. Step 2: Convert to fraction form
    1,007,663.97/1,390,634.77 = 758,860.61/x
  3. Step 3: Cross multiply
    1,007,663.97x = 1,390,634.77 × 758,860.61
  4. Step 4: Simplify right side
    1,007,663.97x = 1,055,297,948,269.97
  5. Step 5: Solve for x
    x = 1,055,297,948,269.97/1,007,663.97
  6. Step 6: Final answer
    x = 1,047,271.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.