Home / 572,282.20-857,688.90-319,562.20

Finding the Fourth Proportional to 572,282.20, 857,688.90 and 319,562.20

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Solution

The fourth proportional to 572,282.20, 857,688.90 and 319,562.20 is: 478,933.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,282.20 : 857,688.90 = 319,562.20 : x
  2. Step 2: Convert to fraction form
    572,282.20/857,688.90 = 319,562.20/x
  3. Step 3: Cross multiply
    572,282.20x = 857,688.90 × 319,562.20
  4. Step 4: Simplify right side
    572,282.20x = 274,084,951,799.58
  5. Step 5: Solve for x
    x = 274,084,951,799.58/572,282.20
  6. Step 6: Final answer
    x = 478,933.21

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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.