Home / 816,701.28-1,224,954.72-217,707.36

Finding the Fourth Proportional to 816,701.28, 1,224,954.72 and 217,707.36

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Solution

The fourth proportional to 816,701.28, 1,224,954.72 and 217,707.36 is: 326,535.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,701.28 : 1,224,954.72 = 217,707.36 : x
  2. Step 2: Convert to fraction form
    816,701.28/1,224,954.72 = 217,707.36/x
  3. Step 3: Cross multiply
    816,701.28x = 1,224,954.72 × 217,707.36
  4. Step 4: Simplify right side
    816,701.28x = 266,681,658,210.74
  5. Step 5: Solve for x
    x = 266,681,658,210.74/816,701.28
  6. Step 6: Final answer
    x = 326,535.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.