Home / 1,393,265.66-1,921,890.07-876,199.42

Finding the Fourth Proportional to 1,393,265.66, 1,921,890.07 and 876,199.42

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Solution

The fourth proportional to 1,393,265.66, 1,921,890.07 and 876,199.42 is: 1,208,641.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,265.66 : 1,921,890.07 = 876,199.42 : x
  2. Step 2: Convert to fraction form
    1,393,265.66/1,921,890.07 = 876,199.42/x
  3. Step 3: Cross multiply
    1,393,265.66x = 1,921,890.07 × 876,199.42
  4. Step 4: Simplify right side
    1,393,265.66x = 1,683,958,964,637.76
  5. Step 5: Solve for x
    x = 1,683,958,964,637.76/1,393,265.66
  6. Step 6: Final answer
    x = 1,208,641.69

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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.