Home / 920,724.21-1,270,663.26-558,163.35

Finding the Fourth Proportional to 920,724.21, 1,270,663.26 and 558,163.35

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Solution

The fourth proportional to 920,724.21, 1,270,663.26 and 558,163.35 is: 770,304.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,724.21 : 1,270,663.26 = 558,163.35 : x
  2. Step 2: Convert to fraction form
    920,724.21/1,270,663.26 = 558,163.35/x
  3. Step 3: Cross multiply
    920,724.21x = 1,270,663.26 × 558,163.35
  4. Step 4: Simplify right side
    920,724.21x = 709,237,661,923.52
  5. Step 5: Solve for x
    x = 709,237,661,923.52/920,724.21
  6. Step 6: Final answer
    x = 770,304.13

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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.