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Finding the Fourth Proportional to 507,789.41, 700,758.14 and 278,331.39

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Solution

The fourth proportional to 507,789.41, 700,758.14 and 278,331.39 is: 384,102.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,789.41 : 700,758.14 = 278,331.39 : x
  2. Step 2: Convert to fraction form
    507,789.41/700,758.14 = 278,331.39/x
  3. Step 3: Cross multiply
    507,789.41x = 700,758.14 × 278,331.39
  4. Step 4: Simplify right side
    507,789.41x = 195,042,985,768.36
  5. Step 5: Solve for x
    x = 195,042,985,768.36/507,789.41
  6. Step 6: Final answer
    x = 384,102.12

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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.