Home / 851,306.86-1,174,789.47-469,369.18

Finding the Fourth Proportional to 851,306.86, 1,174,789.47 and 469,369.18

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Solution

The fourth proportional to 851,306.86, 1,174,789.47 and 469,369.18 is: 647,721.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,306.86 : 1,174,789.47 = 469,369.18 : x
  2. Step 2: Convert to fraction form
    851,306.86/1,174,789.47 = 469,369.18/x
  3. Step 3: Cross multiply
    851,306.86x = 1,174,789.47 × 469,369.18
  4. Step 4: Simplify right side
    851,306.86x = 551,409,970,206.54
  5. Step 5: Solve for x
    x = 551,409,970,206.54/851,306.86
  6. Step 6: Final answer
    x = 647,721.75

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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.