Home / 1,187,901.51-1,639,298.91-644,035.62

Finding the Fourth Proportional to 1,187,901.51, 1,639,298.91 and 644,035.62

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Solution

The fourth proportional to 1,187,901.51, 1,639,298.91 and 644,035.62 is: 888,766.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,901.51 : 1,639,298.91 = 644,035.62 : x
  2. Step 2: Convert to fraction form
    1,187,901.51/1,639,298.91 = 644,035.62/x
  3. Step 3: Cross multiply
    1,187,901.51x = 1,639,298.91 × 644,035.62
  4. Step 4: Simplify right side
    1,187,901.51x = 1,055,766,889,867.17
  5. Step 5: Solve for x
    x = 1,055,766,889,867.17/1,187,901.51
  6. Step 6: Final answer
    x = 888,766.35

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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.