Home / 727,828.71-1,004,390.22-405,531.87

Finding the Fourth Proportional to 727,828.71, 1,004,390.22 and 405,531.87

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Solution

The fourth proportional to 727,828.71, 1,004,390.22 and 405,531.87 is: 559,626.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,828.71 : 1,004,390.22 = 405,531.87 : x
  2. Step 2: Convert to fraction form
    727,828.71/1,004,390.22 = 405,531.87/x
  3. Step 3: Cross multiply
    727,828.71x = 1,004,390.22 × 405,531.87
  4. Step 4: Simplify right side
    727,828.71x = 407,312,244,126.31
  5. Step 5: Solve for x
    x = 407,312,244,126.31/727,828.71
  6. Step 6: Final answer
    x = 559,626.51

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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.