Home / 1,283,978.73-1,925,963.46-385,416.57

Finding the Fourth Proportional to 1,283,978.73, 1,925,963.46 and 385,416.57

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Solution

The fourth proportional to 1,283,978.73, 1,925,963.46 and 385,416.57 is: 578,123.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283,978.73 : 1,925,963.46 = 385,416.57 : x
  2. Step 2: Convert to fraction form
    1,283,978.73/1,925,963.46 = 385,416.57/x
  3. Step 3: Cross multiply
    1,283,978.73x = 1,925,963.46 × 385,416.57
  4. Step 4: Simplify right side
    1,283,978.73x = 742,298,230,698.53
  5. Step 5: Solve for x
    x = 742,298,230,698.53/1,283,978.73
  6. Step 6: Final answer
    x = 578,123.46

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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.