Home / 1,186,089.75-1,636,801.42-642,225.38

Finding the Fourth Proportional to 1,186,089.75, 1,636,801.42 and 642,225.38

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Solution

The fourth proportional to 1,186,089.75, 1,636,801.42 and 642,225.38 is: 886,269.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,089.75 : 1,636,801.42 = 642,225.38 : x
  2. Step 2: Convert to fraction form
    1,186,089.75/1,636,801.42 = 642,225.38/x
  3. Step 3: Cross multiply
    1,186,089.75x = 1,636,801.42 × 642,225.38
  4. Step 4: Simplify right side
    1,186,089.75x = 1,051,195,413,944.04
  5. Step 5: Solve for x
    x = 1,051,195,413,944.04/1,186,089.75
  6. Step 6: Final answer
    x = 886,269.71

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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.