Home / 771,830.42-1,157,640.54-203,163.92

Finding the Fourth Proportional to 771,830.42, 1,157,640.54 and 203,163.92

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Solution

The fourth proportional to 771,830.42, 1,157,640.54 and 203,163.92 is: 304,718.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,830.42 : 1,157,640.54 = 203,163.92 : x
  2. Step 2: Convert to fraction form
    771,830.42/1,157,640.54 = 203,163.92/x
  3. Step 3: Cross multiply
    771,830.42x = 1,157,640.54 × 203,163.92
  4. Step 4: Simplify right side
    771,830.42x = 235,190,784,269.11
  5. Step 5: Solve for x
    x = 235,190,784,269.11/771,830.42
  6. Step 6: Final answer
    x = 304,718.21

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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.