Home / 1,215,957.65-1,678,028.24-664,674.19

Finding the Fourth Proportional to 1,215,957.65, 1,678,028.24 and 664,674.19

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Solution

The fourth proportional to 1,215,957.65, 1,678,028.24 and 664,674.19 is: 917,254.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,957.65 : 1,678,028.24 = 664,674.19 : x
  2. Step 2: Convert to fraction form
    1,215,957.65/1,678,028.24 = 664,674.19/x
  3. Step 3: Cross multiply
    1,215,957.65x = 1,678,028.24 × 664,674.19
  4. Step 4: Simplify right side
    1,215,957.65x = 1,115,342,049,505.61
  5. Step 5: Solve for x
    x = 1,115,342,049,505.61/1,215,957.65
  6. Step 6: Final answer
    x = 917,254.03

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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.