Home / 674,335.80-1,012,001.40-319,349.22

Finding the Fourth Proportional to 674,335.80, 1,012,001.40 and 319,349.22

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Solution

The fourth proportional to 674,335.80, 1,012,001.40 and 319,349.22 is: 479,259.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,335.80 : 1,012,001.40 = 319,349.22 : x
  2. Step 2: Convert to fraction form
    674,335.80/1,012,001.40 = 319,349.22/x
  3. Step 3: Cross multiply
    674,335.80x = 1,012,001.40 × 319,349.22
  4. Step 4: Simplify right side
    674,335.80x = 323,181,857,728.91
  5. Step 5: Solve for x
    x = 323,181,857,728.91/674,335.80
  6. Step 6: Final answer
    x = 479,259.53

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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.