Home / 920,728.87-1,270,669.73-558,168.01

Finding the Fourth Proportional to 920,728.87, 1,270,669.73 and 558,168.01

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Solution

The fourth proportional to 920,728.87, 1,270,669.73 and 558,168.01 is: 770,310.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,728.87 : 1,270,669.73 = 558,168.01 : x
  2. Step 2: Convert to fraction form
    920,728.87/1,270,669.73 = 558,168.01/x
  3. Step 3: Cross multiply
    920,728.87x = 1,270,669.73 × 558,168.01
  4. Step 4: Simplify right side
    920,728.87x = 709,247,198,881.04
  5. Step 5: Solve for x
    x = 709,247,198,881.04/920,728.87
  6. Step 6: Final answer
    x = 770,310.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.