Home / 945,471.89-1,304,742.80-515,742.80

Finding the Fourth Proportional to 945,471.89, 1,304,742.80 and 515,742.80

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Solution

The fourth proportional to 945,471.89, 1,304,742.80 and 515,742.80 is: 711,720.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,471.89 : 1,304,742.80 = 515,742.80 : x
  2. Step 2: Convert to fraction form
    945,471.89/1,304,742.80 = 515,742.80/x
  3. Step 3: Cross multiply
    945,471.89x = 1,304,742.80 × 515,742.80
  4. Step 4: Simplify right side
    945,471.89x = 672,911,699,717.48
  5. Step 5: Solve for x
    x = 672,911,699,717.48/945,471.89
  6. Step 6: Final answer
    x = 711,720.47

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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.