Home / 1,247,438.60-1,721,072.26-763,499.24

Finding the Fourth Proportional to 1,247,438.60, 1,721,072.26 and 763,499.24

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Solution

The fourth proportional to 1,247,438.60, 1,721,072.26 and 763,499.24 is: 1,053,388.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,438.60 : 1,721,072.26 = 763,499.24 : x
  2. Step 2: Convert to fraction form
    1,247,438.60/1,721,072.26 = 763,499.24/x
  3. Step 3: Cross multiply
    1,247,438.60x = 1,721,072.26 × 763,499.24
  4. Step 4: Simplify right side
    1,247,438.60x = 1,314,037,362,495.08
  5. Step 5: Solve for x
    x = 1,314,037,362,495.08/1,247,438.60
  6. Step 6: Final answer
    x = 1,053,388.41

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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.