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Finding the Fourth Proportional to 439,879.78, 607,033.68 and 238,675.78

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Solution

The fourth proportional to 439,879.78, 607,033.68 and 238,675.78 is: 329,372.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,879.78 : 607,033.68 = 238,675.78 : x
  2. Step 2: Convert to fraction form
    439,879.78/607,033.68 = 238,675.78/x
  3. Step 3: Cross multiply
    439,879.78x = 607,033.68 × 238,675.78
  4. Step 4: Simplify right side
    439,879.78x = 144,884,237,060.27
  5. Step 5: Solve for x
    x = 144,884,237,060.27/439,879.78
  6. Step 6: Final answer
    x = 329,372.35

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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.