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Finding the Fourth Proportional to 901,804, 1,244,528.64 and 499,396

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Solution

The fourth proportional to 901,804, 1,244,528.64 and 499,396 is: 689,188.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,804 : 1,244,528.64 = 499,396 : x
  2. Step 2: Convert to fraction form
    901,804/1,244,528.64 = 499,396/x
  3. Step 3: Cross multiply
    901,804x = 1,244,528.64 × 499,396
  4. Step 4: Simplify right side
    901,804x = 621,512,624,701.44
  5. Step 5: Solve for x
    x = 621,512,624,701.44/901,804
  6. Step 6: Final answer
    x = 689,188.14

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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.