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Finding the Fourth Proportional to 901,794, 1,244,476.08 and 499,386

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Solution

The fourth proportional to 901,794, 1,244,476.08 and 499,386 is: 689,152.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,794 : 1,244,476.08 = 499,386 : x
  2. Step 2: Convert to fraction form
    901,794/1,244,476.08 = 499,386/x
  3. Step 3: Cross multiply
    901,794x = 1,244,476.08 × 499,386
  4. Step 4: Simplify right side
    901,794x = 621,473,931,686.88
  5. Step 5: Solve for x
    x = 621,473,931,686.88/901,794
  6. Step 6: Final answer
    x = 689,152.88

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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.