Home / 691,125.10-1,036,687.65-651,759.10

Finding the Fourth Proportional to 691,125.10, 1,036,687.65 and 651,759.10

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Solution

The fourth proportional to 691,125.10, 1,036,687.65 and 651,759.10 is: 977,638.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,125.10 : 1,036,687.65 = 651,759.10 : x
  2. Step 2: Convert to fraction form
    691,125.10/1,036,687.65 = 651,759.10/x
  3. Step 3: Cross multiply
    691,125.10x = 1,036,687.65 × 651,759.10
  4. Step 4: Simplify right side
    691,125.10x = 675,670,609,745.12
  5. Step 5: Solve for x
    x = 675,670,609,745.12/691,125.10
  6. Step 6: Final answer
    x = 977,638.65

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1.5x scale

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.