Home / 643,148.56-964,868.64-222,428.08

Finding the Fourth Proportional to 643,148.56, 964,868.64 and 222,428.08

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Solution

The fourth proportional to 643,148.56, 964,868.64 and 222,428.08 is: 333,692.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,148.56 : 964,868.64 = 222,428.08 : x
  2. Step 2: Convert to fraction form
    643,148.56/964,868.64 = 222,428.08/x
  3. Step 3: Cross multiply
    643,148.56x = 964,868.64 × 222,428.08
  4. Step 4: Simplify right side
    643,148.56x = 214,613,879,047.41
  5. Step 5: Solve for x
    x = 214,613,879,047.41/643,148.56
  6. Step 6: Final answer
    x = 333,692.54

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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.