Home / 766,308.60-1,149,584.40-260,917.20

Finding the Fourth Proportional to 766,308.60, 1,149,584.40 and 260,917.20

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Solution

The fourth proportional to 766,308.60, 1,149,584.40 and 260,917.20 is: 391,417.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,308.60 : 1,149,584.40 = 260,917.20 : x
  2. Step 2: Convert to fraction form
    766,308.60/1,149,584.40 = 260,917.20/x
  3. Step 3: Cross multiply
    766,308.60x = 1,149,584.40 × 260,917.20
  4. Step 4: Simplify right side
    766,308.60x = 299,946,342,811.68
  5. Step 5: Solve for x
    x = 299,946,342,811.68/766,308.60
  6. Step 6: Final answer
    x = 391,417.17

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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.