Home / 771,425.51-1,157,214.39-265,919.94

Finding the Fourth Proportional to 771,425.51, 1,157,214.39 and 265,919.94

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Solution

The fourth proportional to 771,425.51, 1,157,214.39 and 265,919.94 is: 398,906.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,425.51 : 1,157,214.39 = 265,919.94 : x
  2. Step 2: Convert to fraction form
    771,425.51/1,157,214.39 = 265,919.94/x
  3. Step 3: Cross multiply
    771,425.51x = 1,157,214.39 × 265,919.94
  4. Step 4: Simplify right side
    771,425.51x = 307,726,381,155.94
  5. Step 5: Solve for x
    x = 307,726,381,155.94/771,425.51
  6. Step 6: Final answer
    x = 398,906.15

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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.