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Finding the Fourth Proportional to 512,889.50, 707,750.44 and 283,444.04

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Solution

The fourth proportional to 512,889.50, 707,750.44 and 283,444.04 is: 391,132.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,889.50 : 707,750.44 = 283,444.04 : x
  2. Step 2: Convert to fraction form
    512,889.50/707,750.44 = 283,444.04/x
  3. Step 3: Cross multiply
    512,889.50x = 707,750.44 × 283,444.04
  4. Step 4: Simplify right side
    512,889.50x = 200,607,639,778.02
  5. Step 5: Solve for x
    x = 200,607,639,778.02/512,889.50
  6. Step 6: Final answer
    x = 391,132.28

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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.