Home / 1,293,242.88-1,784,730.56-720,283.20

Finding the Fourth Proportional to 1,293,242.88, 1,784,730.56 and 720,283.20

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Solution

The fourth proportional to 1,293,242.88, 1,784,730.56 and 720,283.20 is: 994,021.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,242.88 : 1,784,730.56 = 720,283.20 : x
  2. Step 2: Convert to fraction form
    1,293,242.88/1,784,730.56 = 720,283.20/x
  3. Step 3: Cross multiply
    1,293,242.88x = 1,784,730.56 × 720,283.20
  4. Step 4: Simplify right side
    1,293,242.88x = 1,285,511,438,894.59
  5. Step 5: Solve for x
    x = 1,285,511,438,894.59/1,293,242.88
  6. Step 6: Final answer
    x = 994,021.66

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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.