Home / 1,247,433.57-1,721,065.37-763,494.21

Finding the Fourth Proportional to 1,247,433.57, 1,721,065.37 and 763,494.21

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Solution

The fourth proportional to 1,247,433.57, 1,721,065.37 and 763,494.21 is: 1,053,381.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,433.57 : 1,721,065.37 = 763,494.21 : x
  2. Step 2: Convert to fraction form
    1,247,433.57/1,721,065.37 = 763,494.21/x
  3. Step 3: Cross multiply
    1,247,433.57x = 1,721,065.37 × 763,494.21
  4. Step 4: Simplify right side
    1,247,433.57x = 1,314,023,445,026.51
  5. Step 5: Solve for x
    x = 1,314,023,445,026.51/1,247,433.57
  6. Step 6: Final answer
    x = 1,053,381.50

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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.