Home / 920,727.47-1,270,667.79-558,166.61

Finding the Fourth Proportional to 920,727.47, 1,270,667.79 and 558,166.61

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Solution

The fourth proportional to 920,727.47, 1,270,667.79 and 558,166.61 is: 770,308.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,727.47 : 1,270,667.79 = 558,166.61 : x
  2. Step 2: Convert to fraction form
    920,727.47/1,270,667.79 = 558,166.61/x
  3. Step 3: Cross multiply
    920,727.47x = 1,270,667.79 × 558,166.61
  4. Step 4: Simplify right side
    920,727.47x = 709,244,335,957.16
  5. Step 5: Solve for x
    x = 709,244,335,957.16/920,727.47
  6. Step 6: Final answer
    x = 770,308.65

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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.