Home / 820,467.30-1,132,242.45-457,887.30

Finding the Fourth Proportional to 820,467.30, 1,132,242.45 and 457,887.30

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Solution

The fourth proportional to 820,467.30, 1,132,242.45 and 457,887.30 is: 631,883.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,467.30 : 1,132,242.45 = 457,887.30 : x
  2. Step 2: Convert to fraction form
    820,467.30/1,132,242.45 = 457,887.30/x
  3. Step 3: Cross multiply
    820,467.30x = 1,132,242.45 × 457,887.30
  4. Step 4: Simplify right side
    820,467.30x = 518,439,438,375.89
  5. Step 5: Solve for x
    x = 518,439,438,375.89/820,467.30
  6. Step 6: Final answer
    x = 631,883.12

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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.