Home / 1,313,825.40-1,970,125.56-682,569.72

Finding the Fourth Proportional to 1,313,825.40, 1,970,125.56 and 682,569.72

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Solution

The fourth proportional to 1,313,825.40, 1,970,125.56 and 682,569.72 is: 1,023,536.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,825.40 : 1,970,125.56 = 682,569.72 : x
  2. Step 2: Convert to fraction form
    1,313,825.40/1,970,125.56 = 682,569.72/x
  3. Step 3: Cross multiply
    1,313,825.40x = 1,970,125.56 × 682,569.72
  4. Step 4: Simplify right side
    1,313,825.40x = 1,344,748,051,854.04
  5. Step 5: Solve for x
    x = 1,344,748,051,854.04/1,313,825.40
  6. Step 6: Final answer
    x = 1,023,536.35

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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.