Home / 920,731.55-1,270,673.42-558,170.69

Finding the Fourth Proportional to 920,731.55, 1,270,673.42 and 558,170.69

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Solution

The fourth proportional to 920,731.55, 1,270,673.42 and 558,170.69 is: 770,314.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,731.55 : 1,270,673.42 = 558,170.69 : x
  2. Step 2: Convert to fraction form
    920,731.55/1,270,673.42 = 558,170.69/x
  3. Step 3: Cross multiply
    920,731.55x = 1,270,673.42 × 558,170.69
  4. Step 4: Simplify right side
    920,731.55x = 709,252,653,601.55
  5. Step 5: Solve for x
    x = 709,252,653,601.55/920,731.55
  6. Step 6: Final answer
    x = 770,314.28

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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.