Home / 572,479.20-857,984.40-319,759.20

Finding the Fourth Proportional to 572,479.20, 857,984.40 and 319,759.20

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Solution

The fourth proportional to 572,479.20, 857,984.40 and 319,759.20 is: 479,228.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,479.20 : 857,984.40 = 319,759.20 : x
  2. Step 2: Convert to fraction form
    572,479.20/857,984.40 = 319,759.20/x
  3. Step 3: Cross multiply
    572,479.20x = 857,984.40 × 319,759.20
  4. Step 4: Simplify right side
    572,479.20x = 274,348,405,356.48
  5. Step 5: Solve for x
    x = 274,348,405,356.48/572,479.20
  6. Step 6: Final answer
    x = 479,228.60

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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.