Home / 727,407.54-1,003,853.49-405,117.57

Finding the Fourth Proportional to 727,407.54, 1,003,853.49 and 405,117.57

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Solution

The fourth proportional to 727,407.54, 1,003,853.49 and 405,117.57 is: 559,079.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,407.54 : 1,003,853.49 = 405,117.57 : x
  2. Step 2: Convert to fraction form
    727,407.54/1,003,853.49 = 405,117.57/x
  3. Step 3: Cross multiply
    727,407.54x = 1,003,853.49 × 405,117.57
  4. Step 4: Simplify right side
    727,407.54x = 406,678,686,504.82
  5. Step 5: Solve for x
    x = 406,678,686,504.82/727,407.54
  6. Step 6: Final answer
    x = 559,079.56

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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.