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Finding the Fourth Proportional to 609,195.71, 913,795.39 and 209,831.29

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Solution

The fourth proportional to 609,195.71, 913,795.39 and 209,831.29 is: 314,747.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,195.71 : 913,795.39 = 209,831.29 : x
  2. Step 2: Convert to fraction form
    609,195.71/913,795.39 = 209,831.29/x
  3. Step 3: Cross multiply
    609,195.71x = 913,795.39 × 209,831.29
  4. Step 4: Simplify right side
    609,195.71x = 191,742,865,479.75
  5. Step 5: Solve for x
    x = 191,742,865,479.75/609,195.71
  6. Step 6: Final answer
    x = 314,747.56

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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.