Home / 641,111.60-961,753.80-220,516.40

Finding the Fourth Proportional to 641,111.60, 961,753.80 and 220,516.40

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Solution

The fourth proportional to 641,111.60, 961,753.80 and 220,516.40 is: 330,804.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,111.60 : 961,753.80 = 220,516.40 : x
  2. Step 2: Convert to fraction form
    641,111.60/961,753.80 = 220,516.40/x
  3. Step 3: Cross multiply
    641,111.60x = 961,753.80 × 220,516.40
  4. Step 4: Simplify right side
    641,111.60x = 212,082,485,662.32
  5. Step 5: Solve for x
    x = 212,082,485,662.32/641,111.60
  6. Step 6: Final answer
    x = 330,804.32

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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.