Home / 869,332.38-1,199,736.27-487,383.90

Finding the Fourth Proportional to 869,332.38, 1,199,736.27 and 487,383.90

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Solution

The fourth proportional to 869,332.38, 1,199,736.27 and 487,383.90 is: 672,622.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,332.38 : 1,199,736.27 = 487,383.90 : x
  2. Step 2: Convert to fraction form
    869,332.38/1,199,736.27 = 487,383.90/x
  3. Step 3: Cross multiply
    869,332.38x = 1,199,736.27 × 487,383.90
  4. Step 4: Simplify right side
    869,332.38x = 584,732,142,244.05
  5. Step 5: Solve for x
    x = 584,732,142,244.05/869,332.38
  6. Step 6: Final answer
    x = 672,622.07

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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.