Home / 920,753.57-1,270,703.72-558,192.71

Finding the Fourth Proportional to 920,753.57, 1,270,703.72 and 558,192.71

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Solution

The fourth proportional to 920,753.57, 1,270,703.72 and 558,192.71 is: 770,344.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,753.57 : 1,270,703.72 = 558,192.71 : x
  2. Step 2: Convert to fraction form
    920,753.57/1,270,703.72 = 558,192.71/x
  3. Step 3: Cross multiply
    920,753.57x = 1,270,703.72 × 558,192.71
  4. Step 4: Simplify right side
    920,753.57x = 709,297,553,073.88
  5. Step 5: Solve for x
    x = 709,297,553,073.88/920,753.57
  6. Step 6: Final answer
    x = 770,344.61

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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.