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Finding the Fourth Proportional to 556,438.72, 834,645.12 and 303,964.96

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Solution

The fourth proportional to 556,438.72, 834,645.12 and 303,964.96 is: 455,940.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,438.72 : 834,645.12 = 303,964.96 : x
  2. Step 2: Convert to fraction form
    556,438.72/834,645.12 = 303,964.96/x
  3. Step 3: Cross multiply
    556,438.72x = 834,645.12 × 303,964.96
  4. Step 4: Simplify right side
    556,438.72x = 253,702,870,515.00
  5. Step 5: Solve for x
    x = 253,702,870,515.00/556,438.72
  6. Step 6: Final answer
    x = 455,940.36

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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.