Home / 1,331,981.46-1,838,097.09-728,356.50

Finding the Fourth Proportional to 1,331,981.46, 1,838,097.09 and 728,356.50

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Solution

The fourth proportional to 1,331,981.46, 1,838,097.09 and 728,356.50 is: 1,005,111.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,981.46 : 1,838,097.09 = 728,356.50 : x
  2. Step 2: Convert to fraction form
    1,331,981.46/1,838,097.09 = 728,356.50/x
  3. Step 3: Cross multiply
    1,331,981.46x = 1,838,097.09 × 728,356.50
  4. Step 4: Simplify right side
    1,331,981.46x = 1,338,789,963,132.59
  5. Step 5: Solve for x
    x = 1,338,789,963,132.59/1,331,981.46
  6. Step 6: Final answer
    x = 1,005,111.56

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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.