Home / 727,412.24-1,003,828.20-421,665.69

Finding the Fourth Proportional to 727,412.24, 1,003,828.20 and 421,665.69

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Solution

The fourth proportional to 727,412.24, 1,003,828.20 and 421,665.69 is: 581,898.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,412.24 : 1,003,828.20 = 421,665.69 : x
  2. Step 2: Convert to fraction form
    727,412.24/1,003,828.20 = 421,665.69/x
  3. Step 3: Cross multiply
    727,412.24x = 1,003,828.20 × 421,665.69
  4. Step 4: Simplify right side
    727,412.24x = 423,279,910,594.46
  5. Step 5: Solve for x
    x = 423,279,910,594.46/727,412.24
  6. Step 6: Final answer
    x = 581,898.25

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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.