Home / 643,038.68-964,360.96-444,634.04

Finding the Fourth Proportional to 643,038.68, 964,360.96 and 444,634.04

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Solution

The fourth proportional to 643,038.68, 964,360.96 and 444,634.04 is: 666,814.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,038.68 : 964,360.96 = 444,634.04 : x
  2. Step 2: Convert to fraction form
    643,038.68/964,360.96 = 444,634.04/x
  3. Step 3: Cross multiply
    643,038.68x = 964,360.96 × 444,634.04
  4. Step 4: Simplify right side
    643,038.68x = 428,787,709,663.08
  5. Step 5: Solve for x
    x = 428,787,709,663.08/643,038.68
  6. Step 6: Final answer
    x = 666,814.80

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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.