Home / 1,387,350.30-1,914,528.90-814,279.77

Finding the Fourth Proportional to 1,387,350.30, 1,914,528.90 and 814,279.77

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Solution

The fourth proportional to 1,387,350.30, 1,914,528.90 and 814,279.77 is: 1,123,697.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,350.30 : 1,914,528.90 = 814,279.77 : x
  2. Step 2: Convert to fraction form
    1,387,350.30/1,914,528.90 = 814,279.77/x
  3. Step 3: Cross multiply
    1,387,350.30x = 1,914,528.90 × 814,279.77
  4. Step 4: Simplify right side
    1,387,350.30x = 1,558,962,152,350.35
  5. Step 5: Solve for x
    x = 1,558,962,152,350.35/1,387,350.30
  6. Step 6: Final answer
    x = 1,123,697.56

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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.