Home / 918,007.70-1,377,011.55-681,811.70

Finding the Fourth Proportional to 918,007.70, 1,377,011.55 and 681,811.70

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Solution

The fourth proportional to 918,007.70, 1,377,011.55 and 681,811.70 is: 1,022,717.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,007.70 : 1,377,011.55 = 681,811.70 : x
  2. Step 2: Convert to fraction form
    918,007.70/1,377,011.55 = 681,811.70/x
  3. Step 3: Cross multiply
    918,007.70x = 1,377,011.55 × 681,811.70
  4. Step 4: Simplify right side
    918,007.70x = 938,862,585,825.14
  5. Step 5: Solve for x
    x = 938,862,585,825.14/918,007.70
  6. Step 6: Final answer
    x = 1,022,717.55

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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.