Home / 1,405,012.13-1,938,916.62-760,432.28

Finding the Fourth Proportional to 1,405,012.13, 1,938,916.62 and 760,432.28

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Solution

The fourth proportional to 1,405,012.13, 1,938,916.62 and 760,432.28 is: 1,049,396.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,012.13 : 1,938,916.62 = 760,432.28 : x
  2. Step 2: Convert to fraction form
    1,405,012.13/1,938,916.62 = 760,432.28/x
  3. Step 3: Cross multiply
    1,405,012.13x = 1,938,916.62 × 760,432.28
  4. Step 4: Simplify right side
    1,405,012.13x = 1,474,414,790,923.79
  5. Step 5: Solve for x
    x = 1,474,414,790,923.79/1,405,012.13
  6. Step 6: Final answer
    x = 1,049,396.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.