Home / 918,640.70-1,377,961.05-669,808.70

Finding the Fourth Proportional to 918,640.70, 1,377,961.05 and 669,808.70

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Solution

The fourth proportional to 918,640.70, 1,377,961.05 and 669,808.70 is: 1,004,713.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,640.70 : 1,377,961.05 = 669,808.70 : x
  2. Step 2: Convert to fraction form
    918,640.70/1,377,961.05 = 669,808.70/x
  3. Step 3: Cross multiply
    918,640.70x = 1,377,961.05 × 669,808.70
  4. Step 4: Simplify right side
    918,640.70x = 922,970,299,551.14
  5. Step 5: Solve for x
    x = 922,970,299,551.14/918,640.70
  6. Step 6: Final answer
    x = 1,004,713.05

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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.