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Finding the Fourth Proportional to 608,812.72, 913,209.50 and 209,456.96

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Solution

The fourth proportional to 608,812.72, 913,209.50 and 209,456.96 is: 314,182.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,812.72 : 913,209.50 = 209,456.96 : x
  2. Step 2: Convert to fraction form
    608,812.72/913,209.50 = 209,456.96/x
  3. Step 3: Cross multiply
    608,812.72x = 913,209.50 × 209,456.96
  4. Step 4: Simplify right side
    608,812.72x = 191,278,081,670.72
  5. Step 5: Solve for x
    x = 191,278,081,670.72/608,812.72
  6. Step 6: Final answer
    x = 314,182.14

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1.5x scale

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.