Home / 775,854.90-1,070,662.98-449,181.69

Finding the Fourth Proportional to 775,854.90, 1,070,662.98 and 449,181.69

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Solution

The fourth proportional to 775,854.90, 1,070,662.98 and 449,181.69 is: 619,861.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,854.90 : 1,070,662.98 = 449,181.69 : x
  2. Step 2: Convert to fraction form
    775,854.90/1,070,662.98 = 449,181.69/x
  3. Step 3: Cross multiply
    775,854.90x = 1,070,662.98 × 449,181.69
  4. Step 4: Simplify right side
    775,854.90x = 480,922,206,776.84
  5. Step 5: Solve for x
    x = 480,922,206,776.84/775,854.90
  6. Step 6: Final answer
    x = 619,861.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.