Home / 920,720.73-1,270,658.46-558,159.87

Finding the Fourth Proportional to 920,720.73, 1,270,658.46 and 558,159.87

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Solution

The fourth proportional to 920,720.73, 1,270,658.46 and 558,159.87 is: 770,299.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,720.73 : 1,270,658.46 = 558,159.87 : x
  2. Step 2: Convert to fraction form
    920,720.73/1,270,658.46 = 558,159.87/x
  3. Step 3: Cross multiply
    920,720.73x = 1,270,658.46 × 558,159.87
  4. Step 4: Simplify right side
    920,720.73x = 709,230,560,848.00
  5. Step 5: Solve for x
    x = 709,230,560,848.00/920,720.73
  6. Step 6: Final answer
    x = 770,299.33

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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.