Home / 840,414.93-1,159,765.20-458,433.51

Finding the Fourth Proportional to 840,414.93, 1,159,765.20 and 458,433.51

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Solution

The fourth proportional to 840,414.93, 1,159,765.20 and 458,433.51 is: 632,634.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,414.93 : 1,159,765.20 = 458,433.51 : x
  2. Step 2: Convert to fraction form
    840,414.93/1,159,765.20 = 458,433.51/x
  3. Step 3: Cross multiply
    840,414.93x = 1,159,765.20 × 458,433.51
  4. Step 4: Simplify right side
    840,414.93x = 531,675,231,411.85
  5. Step 5: Solve for x
    x = 531,675,231,411.85/840,414.93
  6. Step 6: Final answer
    x = 632,634.21

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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.