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Finding the Fourth Proportional to 899,375.84, 1,241,209.42 and 512,207.64

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Solution

The fourth proportional to 899,375.84, 1,241,209.42 and 512,207.64 is: 706,886.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,375.84 : 1,241,209.42 = 512,207.64 : x
  2. Step 2: Convert to fraction form
    899,375.84/1,241,209.42 = 512,207.64/x
  3. Step 3: Cross multiply
    899,375.84x = 1,241,209.42 × 512,207.64
  4. Step 4: Simplify right side
    899,375.84x = 635,756,947,763.97
  5. Step 5: Solve for x
    x = 635,756,947,763.97/899,375.84
  6. Step 6: Final answer
    x = 706,886.84

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1.5x scale

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.