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Finding the Fourth Proportional to 727,568.66, 1,003,683.66 and 486,174.98

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Solution

The fourth proportional to 727,568.66, 1,003,683.66 and 486,174.98 is: 670,680.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,568.66 : 1,003,683.66 = 486,174.98 : x
  2. Step 2: Convert to fraction form
    727,568.66/1,003,683.66 = 486,174.98/x
  3. Step 3: Cross multiply
    727,568.66x = 1,003,683.66 × 486,174.98
  4. Step 4: Simplify right side
    727,568.66x = 487,965,883,326.83
  5. Step 5: Solve for x
    x = 487,965,883,326.83/727,568.66
  6. Step 6: Final answer
    x = 670,680.18

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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.