Home / 572,557.20-858,101.40-319,837.20

Finding the Fourth Proportional to 572,557.20, 858,101.40 and 319,837.20

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Solution

The fourth proportional to 572,557.20, 858,101.40 and 319,837.20 is: 479,345.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,557.20 : 858,101.40 = 319,837.20 : x
  2. Step 2: Convert to fraction form
    572,557.20/858,101.40 = 319,837.20/x
  3. Step 3: Cross multiply
    572,557.20x = 858,101.40 × 319,837.20
  4. Step 4: Simplify right side
    572,557.20x = 274,452,749,092.08
  5. Step 5: Solve for x
    x = 274,452,749,092.08/572,557.20
  6. Step 6: Final answer
    x = 479,345.56

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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.