Home / 1,395,589.12-1,925,959.48-783,849.52

Finding the Fourth Proportional to 1,395,589.12, 1,925,959.48 and 783,849.52

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Solution

The fourth proportional to 1,395,589.12, 1,925,959.48 and 783,849.52 is: 1,081,738.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,589.12 : 1,925,959.48 = 783,849.52 : x
  2. Step 2: Convert to fraction form
    1,395,589.12/1,925,959.48 = 783,849.52/x
  3. Step 3: Cross multiply
    1,395,589.12x = 1,925,959.48 × 783,849.52
  4. Step 4: Simplify right side
    1,395,589.12x = 1,509,662,413,937.45
  5. Step 5: Solve for x
    x = 1,509,662,413,937.45/1,395,589.12
  6. Step 6: Final answer
    x = 1,081,738.45

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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.