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Finding the Fourth Proportional to 620,906.76, 930,581.02 and 265,502.86

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Solution

The fourth proportional to 620,906.76, 930,581.02 and 265,502.86 is: 397,921.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,906.76 : 930,581.02 = 265,502.86 : x
  2. Step 2: Convert to fraction form
    620,906.76/930,581.02 = 265,502.86/x
  3. Step 3: Cross multiply
    620,906.76x = 930,581.02 × 265,502.86
  4. Step 4: Simplify right side
    620,906.76x = 247,071,922,271.72
  5. Step 5: Solve for x
    x = 247,071,922,271.72/620,906.76
  6. Step 6: Final answer
    x = 397,921.13

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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.