Home / 490,581.60-677,008.71-296,986.74

Finding the Fourth Proportional to 490,581.60, 677,008.71 and 296,986.74

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Solution

The fourth proportional to 490,581.60, 677,008.71 and 296,986.74 is: 409,845.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,581.60 : 677,008.71 = 296,986.74 : x
  2. Step 2: Convert to fraction form
    490,581.60/677,008.71 = 296,986.74/x
  3. Step 3: Cross multiply
    490,581.60x = 677,008.71 × 296,986.74
  4. Step 4: Simplify right side
    490,581.60x = 201,062,609,734.51
  5. Step 5: Solve for x
    x = 201,062,609,734.51/490,581.60
  6. Step 6: Final answer
    x = 409,845.40

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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.