Home / 709,847.98-1,063,074.48-409,417.78

Finding the Fourth Proportional to 709,847.98, 1,063,074.48 and 409,417.78

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Solution

The fourth proportional to 709,847.98, 1,063,074.48 and 409,417.78 is: 613,147.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,847.98 : 1,063,074.48 = 409,417.78 : x
  2. Step 2: Convert to fraction form
    709,847.98/1,063,074.48 = 409,417.78/x
  3. Step 3: Cross multiply
    709,847.98x = 1,063,074.48 × 409,417.78
  4. Step 4: Simplify right side
    709,847.98x = 435,241,593,576.25
  5. Step 5: Solve for x
    x = 435,241,593,576.25/709,847.98
  6. Step 6: Final answer
    x = 613,147.61

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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.