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Finding the Fourth Proportional to 512,579.00, 707,356.20 and 283,152.07

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Solution

The fourth proportional to 512,579.00, 707,356.20 and 283,152.07 is: 390,748.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,579.00 : 707,356.20 = 283,152.07 : x
  2. Step 2: Convert to fraction form
    512,579.00/707,356.20 = 283,152.07/x
  3. Step 3: Cross multiply
    512,579.00x = 707,356.20 × 283,152.07
  4. Step 4: Simplify right side
    512,579.00x = 200,289,368,720.55
  5. Step 5: Solve for x
    x = 200,289,368,720.55/512,579.00
  6. Step 6: Final answer
    x = 390,748.30

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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.