Home / 1,283,976.76-1,925,960.44-385,414.60

Finding the Fourth Proportional to 1,283,976.76, 1,925,960.44 and 385,414.60

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Solution

The fourth proportional to 1,283,976.76, 1,925,960.44 and 385,414.60 is: 578,120.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283,976.76 : 1,925,960.44 = 385,414.60 : x
  2. Step 2: Convert to fraction form
    1,283,976.76/1,925,960.44 = 385,414.60/x
  3. Step 3: Cross multiply
    1,283,976.76x = 1,925,960.44 × 385,414.60
  4. Step 4: Simplify right side
    1,283,976.76x = 742,293,272,598.42
  5. Step 5: Solve for x
    x = 742,293,272,598.42/1,283,976.76
  6. Step 6: Final answer
    x = 578,120.49

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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.