Home / 691,442.10-1,036,485-331,510.80

Finding the Fourth Proportional to 691,442.10, 1,036,485 and 331,510.80

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Solution

The fourth proportional to 691,442.10, 1,036,485 and 331,510.80 is: 496,941.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,442.10 : 1,036,485 = 331,510.80 : x
  2. Step 2: Convert to fraction form
    691,442.10/1,036,485 = 331,510.80/x
  3. Step 3: Cross multiply
    691,442.10x = 1,036,485 × 331,510.80
  4. Step 4: Simplify right side
    691,442.10x = 343,605,971,538
  5. Step 5: Solve for x
    x = 343,605,971,538/691,442.10
  6. Step 6: Final answer
    x = 496,941.06

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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.