Home / 494,230.89-740,815.68-209,681.28

Finding the Fourth Proportional to 494,230.89, 740,815.68 and 209,681.28

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Solution

The fourth proportional to 494,230.89, 740,815.68 and 209,681.28 is: 314,296.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,230.89 : 740,815.68 = 209,681.28 : x
  2. Step 2: Convert to fraction form
    494,230.89/740,815.68 = 209,681.28/x
  3. Step 3: Cross multiply
    494,230.89x = 740,815.68 × 209,681.28
  4. Step 4: Simplify right side
    494,230.89x = 155,335,180,026.47
  5. Step 5: Solve for x
    x = 155,335,180,026.47/494,230.89
  6. Step 6: Final answer
    x = 314,296.79

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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.