Home / 1,266,383.90-1,747,612.67-685,613.16

Finding the Fourth Proportional to 1,266,383.90, 1,747,612.67 and 685,613.16

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Solution

The fourth proportional to 1,266,383.90, 1,747,612.67 and 685,613.16 is: 946,147.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,383.90 : 1,747,612.67 = 685,613.16 : x
  2. Step 2: Convert to fraction form
    1,266,383.90/1,747,612.67 = 685,613.16/x
  3. Step 3: Cross multiply
    1,266,383.90x = 1,747,612.67 × 685,613.16
  4. Step 4: Simplify right side
    1,266,383.90x = 1,198,186,241,706.67
  5. Step 5: Solve for x
    x = 1,198,186,241,706.67/1,266,383.90
  6. Step 6: Final answer
    x = 946,147.72

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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.