Home / 1,321,170.42-1,981,269.52-456,385.27

Finding the Fourth Proportional to 1,321,170.42, 1,981,269.52 and 456,385.27

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Solution

The fourth proportional to 1,321,170.42, 1,981,269.52 and 456,385.27 is: 684,409.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,170.42 : 1,981,269.52 = 456,385.27 : x
  2. Step 2: Convert to fraction form
    1,321,170.42/1,981,269.52 = 456,385.27/x
  3. Step 3: Cross multiply
    1,321,170.42x = 1,981,269.52 × 456,385.27
  4. Step 4: Simplify right side
    1,321,170.42x = 904,222,224,827.97
  5. Step 5: Solve for x
    x = 904,222,224,827.97/1,321,170.42
  6. Step 6: Final answer
    x = 684,409.98

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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.