Home / 816,702.28-1,224,956.22-217,708.36

Finding the Fourth Proportional to 816,702.28, 1,224,956.22 and 217,708.36

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Solution

The fourth proportional to 816,702.28, 1,224,956.22 and 217,708.36 is: 326,536.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,702.28 : 1,224,956.22 = 217,708.36 : x
  2. Step 2: Convert to fraction form
    816,702.28/1,224,956.22 = 217,708.36/x
  3. Step 3: Cross multiply
    816,702.28x = 1,224,956.22 × 217,708.36
  4. Step 4: Simplify right side
    816,702.28x = 266,683,209,728.00
  5. Step 5: Solve for x
    x = 266,683,209,728.00/816,702.28
  6. Step 6: Final answer
    x = 326,536.63

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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.