Home / 820,315.18-1,132,033.62-457,717.06

Finding the Fourth Proportional to 820,315.18, 1,132,033.62 and 457,717.06

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Solution

The fourth proportional to 820,315.18, 1,132,033.62 and 457,717.06 is: 631,648.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,315.18 : 1,132,033.62 = 457,717.06 : x
  2. Step 2: Convert to fraction form
    820,315.18/1,132,033.62 = 457,717.06/x
  3. Step 3: Cross multiply
    820,315.18x = 1,132,033.62 × 457,717.06
  4. Step 4: Simplify right side
    820,315.18x = 518,151,100,367.56
  5. Step 5: Solve for x
    x = 518,151,100,367.56/820,315.18
  6. Step 6: Final answer
    x = 631,648.80

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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.