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Finding the Fourth Proportional to 608,830.57, 913,236.36 and 209,474.83

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Solution

The fourth proportional to 608,830.57, 913,236.36 and 209,474.83 is: 314,208.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,830.57 : 913,236.36 = 209,474.83 : x
  2. Step 2: Convert to fraction form
    608,830.57/913,236.36 = 209,474.83/x
  3. Step 3: Cross multiply
    608,830.57x = 913,236.36 × 209,474.83
  4. Step 4: Simplify right side
    608,830.57x = 191,300,031,260.82
  5. Step 5: Solve for x
    x = 191,300,031,260.82/608,830.57
  6. Step 6: Final answer
    x = 314,208.98

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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.