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Finding the Fourth Proportional to 622,799, 859,674.86 and 387,237.24

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Solution

The fourth proportional to 622,799, 859,674.86 and 387,237.24 is: 534,519.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,799 : 859,674.86 = 387,237.24 : x
  2. Step 2: Convert to fraction form
    622,799/859,674.86 = 387,237.24/x
  3. Step 3: Cross multiply
    622,799x = 859,674.86 × 387,237.24
  4. Step 4: Simplify right side
    622,799x = 332,898,120,083.79
  5. Step 5: Solve for x
    x = 332,898,120,083.79/622,799
  6. Step 6: Final answer
    x = 534,519.36

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1.5x scale

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.