Home / 1,069,755.20-1,476,068.64-687,694.40

Finding the Fourth Proportional to 1,069,755.20, 1,476,068.64 and 687,694.40

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Solution

The fourth proportional to 1,069,755.20, 1,476,068.64 and 687,694.40 is: 948,893.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,755.20 : 1,476,068.64 = 687,694.40 : x
  2. Step 2: Convert to fraction form
    1,069,755.20/1,476,068.64 = 687,694.40/x
  3. Step 3: Cross multiply
    1,069,755.20x = 1,476,068.64 × 687,694.40
  4. Step 4: Simplify right side
    1,069,755.20x = 1,015,084,137,743.62
  5. Step 5: Solve for x
    x = 1,015,084,137,743.62/1,069,755.20
  6. Step 6: Final answer
    x = 948,893.86

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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.