Home / 1,187,898.51-1,639,294.78-644,032.62

Finding the Fourth Proportional to 1,187,898.51, 1,639,294.78 and 644,032.62

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Solution

The fourth proportional to 1,187,898.51, 1,639,294.78 and 644,032.62 is: 888,762.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,898.51 : 1,639,294.78 = 644,032.62 : x
  2. Step 2: Convert to fraction form
    1,187,898.51/1,639,294.78 = 644,032.62/x
  3. Step 3: Cross multiply
    1,187,898.51x = 1,639,294.78 × 644,032.62
  4. Step 4: Simplify right side
    1,187,898.51x = 1,055,759,313,524.55
  5. Step 5: Solve for x
    x = 1,055,759,313,524.55/1,187,898.51
  6. Step 6: Final answer
    x = 888,762.21

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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.