Home / 727,872.06-1,004,453.28-405,595.74

Finding the Fourth Proportional to 727,872.06, 1,004,453.28 and 405,595.74

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Solution

The fourth proportional to 727,872.06, 1,004,453.28 and 405,595.74 is: 559,716.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,872.06 : 1,004,453.28 = 405,595.74 : x
  2. Step 2: Convert to fraction form
    727,872.06/1,004,453.28 = 405,595.74/x
  3. Step 3: Cross multiply
    727,872.06x = 1,004,453.28 × 405,595.74
  4. Step 4: Simplify right side
    727,872.06x = 407,401,971,397.03
  5. Step 5: Solve for x
    x = 407,401,971,397.03/727,872.06
  6. Step 6: Final answer
    x = 559,716.46

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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.