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Finding the Fourth Proportional to 697,663.08, 962,516.70 and 439,470.72

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Solution

The fourth proportional to 697,663.08, 962,516.70 and 439,470.72 is: 606,306.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,663.08 : 962,516.70 = 439,470.72 : x
  2. Step 2: Convert to fraction form
    697,663.08/962,516.70 = 439,470.72/x
  3. Step 3: Cross multiply
    697,663.08x = 962,516.70 × 439,470.72
  4. Step 4: Simplify right side
    697,663.08x = 422,997,907,161.02
  5. Step 5: Solve for x
    x = 422,997,907,161.02/697,663.08
  6. Step 6: Final answer
    x = 606,306.85

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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.