Home / 672,821.78-1,009,232.46-461,820.02

Finding the Fourth Proportional to 672,821.78, 1,009,232.46 and 461,820.02

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Solution

The fourth proportional to 672,821.78, 1,009,232.46 and 461,820.02 is: 692,729.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,821.78 : 1,009,232.46 = 461,820.02 : x
  2. Step 2: Convert to fraction form
    672,821.78/1,009,232.46 = 461,820.02/x
  3. Step 3: Cross multiply
    672,821.78x = 1,009,232.46 × 461,820.02
  4. Step 4: Simplify right side
    672,821.78x = 466,083,754,861.85
  5. Step 5: Solve for x
    x = 466,083,754,861.85/672,821.78
  6. Step 6: Final answer
    x = 692,729.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.