Home / 691,465.61-1,036,524.87-312,481.73

Finding the Fourth Proportional to 691,465.61, 1,036,524.87 and 312,481.73

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Solution

The fourth proportional to 691,465.61, 1,036,524.87 and 312,481.73 is: 468,418.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,465.61 : 1,036,524.87 = 312,481.73 : x
  2. Step 2: Convert to fraction form
    691,465.61/1,036,524.87 = 312,481.73/x
  3. Step 3: Cross multiply
    691,465.61x = 1,036,524.87 × 312,481.73
  4. Step 4: Simplify right side
    691,465.61x = 323,895,087,156.94
  5. Step 5: Solve for x
    x = 323,895,087,156.94/691,465.61
  6. Step 6: Final answer
    x = 468,418.21

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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.