Home / 727,411.24-1,003,826.82-421,664.69

Finding the Fourth Proportional to 727,411.24, 1,003,826.82 and 421,664.69

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Solution

The fourth proportional to 727,411.24, 1,003,826.82 and 421,664.69 is: 581,896.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,411.24 : 1,003,826.82 = 421,664.69 : x
  2. Step 2: Convert to fraction form
    727,411.24/1,003,826.82 = 421,664.69/x
  3. Step 3: Cross multiply
    727,411.24x = 1,003,826.82 × 421,664.69
  4. Step 4: Simplify right side
    727,411.24x = 423,278,323,313.27
  5. Step 5: Solve for x
    x = 423,278,323,313.27/727,411.24
  6. Step 6: Final answer
    x = 581,896.87

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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.