Home / 837,721.66-1,156,457.42-515,707.78

Finding the Fourth Proportional to 837,721.66, 1,156,457.42 and 515,707.78

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Solution

The fourth proportional to 837,721.66, 1,156,457.42 and 515,707.78 is: 711,923.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,721.66 : 1,156,457.42 = 515,707.78 : x
  2. Step 2: Convert to fraction form
    837,721.66/1,156,457.42 = 515,707.78/x
  3. Step 3: Cross multiply
    837,721.66x = 1,156,457.42 × 515,707.78
  4. Step 4: Simplify right side
    837,721.66x = 596,394,088,732.73
  5. Step 5: Solve for x
    x = 596,394,088,732.73/837,721.66
  6. Step 6: Final answer
    x = 711,923.92

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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.