Home / 1,278,044.81-1,764,288.90-1,102,918.35

Finding the Fourth Proportional to 1,278,044.81, 1,764,288.90 and 1,102,918.35

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Solution

The fourth proportional to 1,278,044.81, 1,764,288.90 and 1,102,918.35 is: 1,522,533.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,044.81 : 1,764,288.90 = 1,102,918.35 : x
  2. Step 2: Convert to fraction form
    1,278,044.81/1,764,288.90 = 1,102,918.35/x
  3. Step 3: Cross multiply
    1,278,044.81x = 1,764,288.90 × 1,102,918.35
  4. Step 4: Simplify right side
    1,278,044.81x = 1,945,866,602,511.32
  5. Step 5: Solve for x
    x = 1,945,866,602,511.32/1,278,044.81
  6. Step 6: Final answer
    x = 1,522,533.95

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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.