Home / 1,398,787.20-2,097,666.72-499,986.36

Finding the Fourth Proportional to 1,398,787.20, 2,097,666.72 and 499,986.36

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Solution

The fourth proportional to 1,398,787.20, 2,097,666.72 and 499,986.36 is: 749,795.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,787.20 : 2,097,666.72 = 499,986.36 : x
  2. Step 2: Convert to fraction form
    1,398,787.20/2,097,666.72 = 499,986.36/x
  3. Step 3: Cross multiply
    1,398,787.20x = 2,097,666.72 × 499,986.36
  4. Step 4: Simplify right side
    1,398,787.20x = 1,048,804,747,825.94
  5. Step 5: Solve for x
    x = 1,048,804,747,825.94/1,398,787.20
  6. Step 6: Final answer
    x = 749,795.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.