Home / 918,154.10-1,377,231.15-681,958.10

Finding the Fourth Proportional to 918,154.10, 1,377,231.15 and 681,958.10

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Solution

The fourth proportional to 918,154.10, 1,377,231.15 and 681,958.10 is: 1,022,937.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,154.10 : 1,377,231.15 = 681,958.10 : x
  2. Step 2: Convert to fraction form
    918,154.10/1,377,231.15 = 681,958.10/x
  3. Step 3: Cross multiply
    918,154.10x = 1,377,231.15 × 681,958.10
  4. Step 4: Simplify right side
    918,154.10x = 939,213,938,314.82
  5. Step 5: Solve for x
    x = 939,213,938,314.82/918,154.10
  6. Step 6: Final answer
    x = 1,022,937.15

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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.