Home / 727,861.65-1,004,435.52-405,564.87

Finding the Fourth Proportional to 727,861.65, 1,004,435.52 and 405,564.87

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Solution

The fourth proportional to 727,861.65, 1,004,435.52 and 405,564.87 is: 559,671.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,861.65 : 1,004,435.52 = 405,564.87 : x
  2. Step 2: Convert to fraction form
    727,861.65/1,004,435.52 = 405,564.87/x
  3. Step 3: Cross multiply
    727,861.65x = 1,004,435.52 × 405,564.87
  4. Step 4: Simplify right side
    727,861.65x = 407,363,761,092.18
  5. Step 5: Solve for x
    x = 407,363,761,092.18/727,861.65
  6. Step 6: Final answer
    x = 559,671.97

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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.