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Finding the Fourth Proportional to 901,913, 1,244,590.02 and 499,473.32

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Solution

The fourth proportional to 901,913, 1,244,590.02 and 499,473.32 is: 689,245.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,913 : 1,244,590.02 = 499,473.32 : x
  2. Step 2: Convert to fraction form
    901,913/1,244,590.02 = 499,473.32/x
  3. Step 3: Cross multiply
    901,913x = 1,244,590.02 × 499,473.32
  4. Step 4: Simplify right side
    901,913x = 621,639,509,328.27
  5. Step 5: Solve for x
    x = 621,639,509,328.27/901,913
  6. Step 6: Final answer
    x = 689,245.54

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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.