Home / 911,129.80-1,366,694.70-698,553.40

Finding the Fourth Proportional to 911,129.80, 1,366,694.70 and 698,553.40

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Solution

The fourth proportional to 911,129.80, 1,366,694.70 and 698,553.40 is: 1,047,830.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,129.80 : 1,366,694.70 = 698,553.40 : x
  2. Step 2: Convert to fraction form
    911,129.80/1,366,694.70 = 698,553.40/x
  3. Step 3: Cross multiply
    911,129.80x = 1,366,694.70 × 698,553.40
  4. Step 4: Simplify right side
    911,129.80x = 954,709,229,446.98
  5. Step 5: Solve for x
    x = 954,709,229,446.98/911,129.80
  6. Step 6: Final answer
    x = 1,047,830.10

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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.