Home / 663,619.23-994,798.20-423,057.87

Finding the Fourth Proportional to 663,619.23, 994,798.20 and 423,057.87

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Solution

The fourth proportional to 663,619.23, 994,798.20 and 423,057.87 is: 634,184.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,619.23 : 994,798.20 = 423,057.87 : x
  2. Step 2: Convert to fraction form
    663,619.23/994,798.20 = 423,057.87/x
  3. Step 3: Cross multiply
    663,619.23x = 994,798.20 × 423,057.87
  4. Step 4: Simplify right side
    663,619.23x = 420,857,207,571.83
  5. Step 5: Solve for x
    x = 420,857,207,571.83/663,619.23
  6. Step 6: Final answer
    x = 634,184.77

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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.