Home / 727,861.46-1,004,435.27-405,564.68

Finding the Fourth Proportional to 727,861.46, 1,004,435.27 and 405,564.68

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Solution

The fourth proportional to 727,861.46, 1,004,435.27 and 405,564.68 is: 559,671.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,861.46 : 1,004,435.27 = 405,564.68 : x
  2. Step 2: Convert to fraction form
    727,861.46/1,004,435.27 = 405,564.68/x
  3. Step 3: Cross multiply
    727,861.46x = 1,004,435.27 × 405,564.68
  4. Step 4: Simplify right side
    727,861.46x = 407,363,470,862.40
  5. Step 5: Solve for x
    x = 407,363,470,862.40/727,861.46
  6. Step 6: Final answer
    x = 559,671.72

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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.