Home / 423,934.24-634,516.80-311,584.72

Finding the Fourth Proportional to 423,934.24, 634,516.80 and 311,584.72

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Solution

The fourth proportional to 423,934.24, 634,516.80 and 311,584.72 is: 466,359.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,934.24 : 634,516.80 = 311,584.72 : x
  2. Step 2: Convert to fraction form
    423,934.24/634,516.80 = 311,584.72/x
  3. Step 3: Cross multiply
    423,934.24x = 634,516.80 × 311,584.72
  4. Step 4: Simplify right side
    423,934.24x = 197,705,739,463.30
  5. Step 5: Solve for x
    x = 197,705,739,463.30/423,934.24
  6. Step 6: Final answer
    x = 466,359.45

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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.