Home / 771,428.52-1,157,218.89-265,922.94

Finding the Fourth Proportional to 771,428.52, 1,157,218.89 and 265,922.94

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Solution

The fourth proportional to 771,428.52, 1,157,218.89 and 265,922.94 is: 398,910.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,428.52 : 1,157,218.89 = 265,922.94 : x
  2. Step 2: Convert to fraction form
    771,428.52/1,157,218.89 = 265,922.94/x
  3. Step 3: Cross multiply
    771,428.52x = 1,157,218.89 × 265,922.94
  4. Step 4: Simplify right side
    771,428.52x = 307,731,049,452.34
  5. Step 5: Solve for x
    x = 307,731,049,452.34/771,428.52
  6. Step 6: Final answer
    x = 398,910.65

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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.