Home / 572,521.20-858,047.40-319,801.20

Finding the Fourth Proportional to 572,521.20, 858,047.40 and 319,801.20

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Solution

The fourth proportional to 572,521.20, 858,047.40 and 319,801.20 is: 479,291.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,521.20 : 858,047.40 = 319,801.20 : x
  2. Step 2: Convert to fraction form
    572,521.20/858,047.40 = 319,801.20/x
  3. Step 3: Cross multiply
    572,521.20x = 858,047.40 × 319,801.20
  4. Step 4: Simplify right side
    572,521.20x = 274,404,588,176.88
  5. Step 5: Solve for x
    x = 274,404,588,176.88/572,521.20
  6. Step 6: Final answer
    x = 479,291.58

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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.