Home / 981,633.60-1,354,631.04-642,094.56

Finding the Fourth Proportional to 981,633.60, 1,354,631.04 and 642,094.56

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Solution

The fourth proportional to 981,633.60, 1,354,631.04 and 642,094.56 is: 886,075.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,633.60 : 1,354,631.04 = 642,094.56 : x
  2. Step 2: Convert to fraction form
    981,633.60/1,354,631.04 = 642,094.56/x
  3. Step 3: Cross multiply
    981,633.60x = 1,354,631.04 × 642,094.56
  4. Step 4: Simplify right side
    981,633.60x = 869,801,221,591.14
  5. Step 5: Solve for x
    x = 869,801,221,591.14/981,633.60
  6. Step 6: Final answer
    x = 886,075.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.