Home / 816,732.81-1,126,631.66-489,958.88

Finding the Fourth Proportional to 816,732.81, 1,126,631.66 and 489,958.88

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Solution

The fourth proportional to 816,732.81, 1,126,631.66 and 489,958.88 is: 675,867.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,732.81 : 1,126,631.66 = 489,958.88 : x
  2. Step 2: Convert to fraction form
    816,732.81/1,126,631.66 = 489,958.88/x
  3. Step 3: Cross multiply
    816,732.81x = 1,126,631.66 × 489,958.88
  4. Step 4: Simplify right side
    816,732.81x = 552,003,178,223.19
  5. Step 5: Solve for x
    x = 552,003,178,223.19/816,732.81
  6. Step 6: Final answer
    x = 675,867.52

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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.