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Finding the Fourth Proportional to 620,865.86, 930,520.04 and 265,462.70

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Solution

The fourth proportional to 620,865.86, 930,520.04 and 265,462.70 is: 397,861.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,865.86 : 930,520.04 = 265,462.70 : x
  2. Step 2: Convert to fraction form
    620,865.86/930,520.04 = 265,462.70/x
  3. Step 3: Cross multiply
    620,865.86x = 930,520.04 × 265,462.70
  4. Step 4: Simplify right side
    620,865.86x = 247,018,356,242.59
  5. Step 5: Solve for x
    x = 247,018,356,242.59/620,865.86
  6. Step 6: Final answer
    x = 397,861.07

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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.