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Finding the Fourth Proportional to 901,597, 1,244,242.74 and 499,189

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Solution

The fourth proportional to 901,597, 1,244,242.74 and 499,189 is: 688,902.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,597 : 1,244,242.74 = 499,189 : x
  2. Step 2: Convert to fraction form
    901,597/1,244,242.74 = 499,189/x
  3. Step 3: Cross multiply
    901,597x = 1,244,242.74 × 499,189
  4. Step 4: Simplify right side
    901,597x = 621,112,289,137.86
  5. Step 5: Solve for x
    x = 621,112,289,137.86/901,597
  6. Step 6: Final answer
    x = 688,902.35

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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.