Home / 439,292.20-657,480.30-319,007.20

Finding the Fourth Proportional to 439,292.20, 657,480.30 and 319,007.20

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Solution

The fourth proportional to 439,292.20, 657,480.30 and 319,007.20 is: 477,452.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,292.20 : 657,480.30 = 319,007.20 : x
  2. Step 2: Convert to fraction form
    439,292.20/657,480.30 = 319,007.20/x
  3. Step 3: Cross multiply
    439,292.20x = 657,480.30 × 319,007.20
  4. Step 4: Simplify right side
    439,292.20x = 209,740,949,558.16
  5. Step 5: Solve for x
    x = 209,740,949,558.16/439,292.20
  6. Step 6: Final answer
    x = 477,452.02

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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.