Home / 930,279.80-1,395,419.70-917,838.20

Finding the Fourth Proportional to 930,279.80, 1,395,419.70 and 917,838.20

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Solution

The fourth proportional to 930,279.80, 1,395,419.70 and 917,838.20 is: 1,376,757.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,279.80 : 1,395,419.70 = 917,838.20 : x
  2. Step 2: Convert to fraction form
    930,279.80/1,395,419.70 = 917,838.20/x
  3. Step 3: Cross multiply
    930,279.80x = 1,395,419.70 × 917,838.20
  4. Step 4: Simplify right side
    930,279.80x = 1,280,769,505,692.54
  5. Step 5: Solve for x
    x = 1,280,769,505,692.54/930,279.80
  6. Step 6: Final answer
    x = 1,376,757.30

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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.