Home / 727,708.04-1,004,211.72-405,401.48

Finding the Fourth Proportional to 727,708.04, 1,004,211.72 and 405,401.48

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Solution

The fourth proportional to 727,708.04, 1,004,211.72 and 405,401.48 is: 559,439.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,708.04 : 1,004,211.72 = 405,401.48 : x
  2. Step 2: Convert to fraction form
    727,708.04/1,004,211.72 = 405,401.48/x
  3. Step 3: Cross multiply
    727,708.04x = 1,004,211.72 × 405,401.48
  4. Step 4: Simplify right side
    727,708.04x = 407,108,917,521.35
  5. Step 5: Solve for x
    x = 407,108,917,521.35/727,708.04
  6. Step 6: Final answer
    x = 559,439.91

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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.