Home / 1,119,843.78-1,545,317.80-636,341.82

Finding the Fourth Proportional to 1,119,843.78, 1,545,317.80 and 636,341.82

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Solution

The fourth proportional to 1,119,843.78, 1,545,317.80 and 636,341.82 is: 878,113.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,843.78 : 1,545,317.80 = 636,341.82 : x
  2. Step 2: Convert to fraction form
    1,119,843.78/1,545,317.80 = 636,341.82/x
  3. Step 3: Cross multiply
    1,119,843.78x = 1,545,317.80 × 636,341.82
  4. Step 4: Simplify right side
    1,119,843.78x = 983,350,341,330.40
  5. Step 5: Solve for x
    x = 983,350,341,330.40/1,119,843.78
  6. Step 6: Final answer
    x = 878,113.86

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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.