Home / 1,326,232.08-1,989,736.20-427,655.58

Finding the Fourth Proportional to 1,326,232.08, 1,989,736.20 and 427,655.58

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Solution

The fourth proportional to 1,326,232.08, 1,989,736.20 and 427,655.58 is: 641,608.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,232.08 : 1,989,736.20 = 427,655.58 : x
  2. Step 2: Convert to fraction form
    1,326,232.08/1,989,736.20 = 427,655.58/x
  3. Step 3: Cross multiply
    1,326,232.08x = 1,989,736.20 × 427,655.58
  4. Step 4: Simplify right side
    1,326,232.08x = 850,921,788,658.00
  5. Step 5: Solve for x
    x = 850,921,788,658.00/1,326,232.08
  6. Step 6: Final answer
    x = 641,608.51

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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.