Home / 1,283,948.73-1,925,918.46-385,386.57

Finding the Fourth Proportional to 1,283,948.73, 1,925,918.46 and 385,386.57

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Solution

The fourth proportional to 1,283,948.73, 1,925,918.46 and 385,386.57 is: 578,078.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283,948.73 : 1,925,918.46 = 385,386.57 : x
  2. Step 2: Convert to fraction form
    1,283,948.73/1,925,918.46 = 385,386.57/x
  3. Step 3: Cross multiply
    1,283,948.73x = 1,925,918.46 × 385,386.57
  4. Step 4: Simplify right side
    1,283,948.73x = 742,223,109,399.08
  5. Step 5: Solve for x
    x = 742,223,109,399.08/1,283,948.73
  6. Step 6: Final answer
    x = 578,078.46

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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.