Home / 727,393.46-1,003,834.10-405,103.57

Finding the Fourth Proportional to 727,393.46, 1,003,834.10 and 405,103.57

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Solution

The fourth proportional to 727,393.46, 1,003,834.10 and 405,103.57 is: 559,060.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,393.46 : 1,003,834.10 = 405,103.57 : x
  2. Step 2: Convert to fraction form
    727,393.46/1,003,834.10 = 405,103.57/x
  3. Step 3: Cross multiply
    727,393.46x = 1,003,834.10 × 405,103.57
  4. Step 4: Simplify right side
    727,393.46x = 406,656,776,100.91
  5. Step 5: Solve for x
    x = 406,656,776,100.91/727,393.46
  6. Step 6: Final answer
    x = 559,060.26

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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.