Home / 1,117,154.31-1,541,786.40-658,416.57

Finding the Fourth Proportional to 1,117,154.31, 1,541,786.40 and 658,416.57

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Solution

The fourth proportional to 1,117,154.31, 1,541,786.40 and 658,416.57 is: 908,681.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,154.31 : 1,541,786.40 = 658,416.57 : x
  2. Step 2: Convert to fraction form
    1,117,154.31/1,541,786.40 = 658,416.57/x
  3. Step 3: Cross multiply
    1,117,154.31x = 1,541,786.40 × 658,416.57
  4. Step 4: Simplify right side
    1,117,154.31x = 1,015,137,713,160.65
  5. Step 5: Solve for x
    x = 1,015,137,713,160.65/1,117,154.31
  6. Step 6: Final answer
    x = 908,681.73

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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.