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Finding the Fourth Proportional to 512,453.92, 707,187.60 and 283,007.02

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Solution

The fourth proportional to 512,453.92, 707,187.60 and 283,007.02 is: 390,550.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,453.92 : 707,187.60 = 283,007.02 : x
  2. Step 2: Convert to fraction form
    512,453.92/707,187.60 = 283,007.02/x
  3. Step 3: Cross multiply
    512,453.92x = 707,187.60 × 283,007.02
  4. Step 4: Simplify right side
    512,453.92x = 200,139,055,256.95
  5. Step 5: Solve for x
    x = 200,139,055,256.95/512,453.92
  6. Step 6: Final answer
    x = 390,550.35

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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.