Home / 1,042,972.92-1,439,323.06-680,628.60

Finding the Fourth Proportional to 1,042,972.92, 1,439,323.06 and 680,628.60

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Solution

The fourth proportional to 1,042,972.92, 1,439,323.06 and 680,628.60 is: 939,280.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,972.92 : 1,439,323.06 = 680,628.60 : x
  2. Step 2: Convert to fraction form
    1,042,972.92/1,439,323.06 = 680,628.60/x
  3. Step 3: Cross multiply
    1,042,972.92x = 1,439,323.06 × 680,628.60
  4. Step 4: Simplify right side
    1,042,972.92x = 979,644,439,275.52
  5. Step 5: Solve for x
    x = 979,644,439,275.52/1,042,972.92
  6. Step 6: Final answer
    x = 939,280.80

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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.