Home / 918,007.10-1,377,010.65-681,811.10

Finding the Fourth Proportional to 918,007.10, 1,377,010.65 and 681,811.10

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Solution

The fourth proportional to 918,007.10, 1,377,010.65 and 681,811.10 is: 1,022,716.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,007.10 : 1,377,010.65 = 681,811.10 : x
  2. Step 2: Convert to fraction form
    918,007.10/1,377,010.65 = 681,811.10/x
  3. Step 3: Cross multiply
    918,007.10x = 1,377,010.65 × 681,811.10
  4. Step 4: Simplify right side
    918,007.10x = 938,861,145,988.22
  5. Step 5: Solve for x
    x = 938,861,145,988.22/918,007.10
  6. Step 6: Final answer
    x = 1,022,716.65

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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.