Home / 1,185,907.36-1,636,552.84-642,043.28

Finding the Fourth Proportional to 1,185,907.36, 1,636,552.84 and 642,043.28

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Solution

The fourth proportional to 1,185,907.36, 1,636,552.84 and 642,043.28 is: 886,020.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,907.36 : 1,636,552.84 = 642,043.28 : x
  2. Step 2: Convert to fraction form
    1,185,907.36/1,636,552.84 = 642,043.28/x
  3. Step 3: Cross multiply
    1,185,907.36x = 1,636,552.84 × 642,043.28
  4. Step 4: Simplify right side
    1,185,907.36x = 1,050,737,753,286.92
  5. Step 5: Solve for x
    x = 1,050,737,753,286.92/1,185,907.36
  6. Step 6: Final answer
    x = 886,020.10

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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.