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Finding the Fourth Proportional to 651,263.99, 898,771.89 and 379,288.05

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Solution

The fourth proportional to 651,263.99, 898,771.89 and 379,288.05 is: 523,433.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,263.99 : 898,771.89 = 379,288.05 : x
  2. Step 2: Convert to fraction form
    651,263.99/898,771.89 = 379,288.05/x
  3. Step 3: Cross multiply
    651,263.99x = 898,771.89 × 379,288.05
  4. Step 4: Simplify right side
    651,263.99x = 340,893,437,552.92
  5. Step 5: Solve for x
    x = 340,893,437,552.92/651,263.99
  6. Step 6: Final answer
    x = 523,433.58

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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.