Home / 920,736.17-1,270,679.72-558,175.31

Finding the Fourth Proportional to 920,736.17, 1,270,679.72 and 558,175.31

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Solution

The fourth proportional to 920,736.17, 1,270,679.72 and 558,175.31 is: 770,320.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,736.17 : 1,270,679.72 = 558,175.31 : x
  2. Step 2: Convert to fraction form
    920,736.17/1,270,679.72 = 558,175.31/x
  3. Step 3: Cross multiply
    920,736.17x = 1,270,679.72 × 558,175.31
  4. Step 4: Simplify right side
    920,736.17x = 709,262,047,007.54
  5. Step 5: Solve for x
    x = 709,262,047,007.54/920,736.17
  6. Step 6: Final answer
    x = 770,320.61

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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.