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Finding the Fourth Proportional to 562,035.09, 775,614.55 and 307,380.81

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Solution

The fourth proportional to 562,035.09, 775,614.55 and 307,380.81 is: 424,188.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,035.09 : 775,614.55 = 307,380.81 : x
  2. Step 2: Convert to fraction form
    562,035.09/775,614.55 = 307,380.81/x
  3. Step 3: Cross multiply
    562,035.09x = 775,614.55 × 307,380.81
  4. Step 4: Simplify right side
    562,035.09x = 238,409,028,626.79
  5. Step 5: Solve for x
    x = 238,409,028,626.79/562,035.09
  6. Step 6: Final answer
    x = 424,188.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.