Home / 889,107.84-1,227,078.72-662,359.68

Finding the Fourth Proportional to 889,107.84, 1,227,078.72 and 662,359.68

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Solution

The fourth proportional to 889,107.84, 1,227,078.72 and 662,359.68 is: 914,138.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,107.84 : 1,227,078.72 = 662,359.68 : x
  2. Step 2: Convert to fraction form
    889,107.84/1,227,078.72 = 662,359.68/x
  3. Step 3: Cross multiply
    889,107.84x = 1,227,078.72 × 662,359.68
  4. Step 4: Simplify right side
    889,107.84x = 812,767,468,314.01
  5. Step 5: Solve for x
    x = 812,767,468,314.01/889,107.84
  6. Step 6: Final answer
    x = 914,138.23

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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.