Home / 439,293.20-657,481.80-319,008.20

Finding the Fourth Proportional to 439,293.20, 657,481.80 and 319,008.20

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Solution

The fourth proportional to 439,293.20, 657,481.80 and 319,008.20 is: 477,453.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,293.20 : 657,481.80 = 319,008.20 : x
  2. Step 2: Convert to fraction form
    439,293.20/657,481.80 = 319,008.20/x
  3. Step 3: Cross multiply
    439,293.20x = 657,481.80 × 319,008.20
  4. Step 4: Simplify right side
    439,293.20x = 209,742,085,550.76
  5. Step 5: Solve for x
    x = 209,742,085,550.76/439,293.20
  6. Step 6: Final answer
    x = 477,453.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.