Home / 513,831.24-770,812.47-198,378.36

Finding the Fourth Proportional to 513,831.24, 770,812.47 and 198,378.36

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Solution

The fourth proportional to 513,831.24, 770,812.47 and 198,378.36 is: 297,592.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,831.24 : 770,812.47 = 198,378.36 : x
  2. Step 2: Convert to fraction form
    513,831.24/770,812.47 = 198,378.36/x
  3. Step 3: Cross multiply
    513,831.24x = 770,812.47 × 198,378.36
  4. Step 4: Simplify right side
    513,831.24x = 152,912,513,666.15
  5. Step 5: Solve for x
    x = 152,912,513,666.15/513,831.24
  6. Step 6: Final answer
    x = 297,592.87

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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.