Home / 1,224,707.40-1,690,124.40-680,822.28

Finding the Fourth Proportional to 1,224,707.40, 1,690,124.40 and 680,822.28

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Solution

The fourth proportional to 1,224,707.40, 1,690,124.40 and 680,822.28 is: 939,550.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,707.40 : 1,690,124.40 = 680,822.28 : x
  2. Step 2: Convert to fraction form
    1,224,707.40/1,690,124.40 = 680,822.28/x
  3. Step 3: Cross multiply
    1,224,707.40x = 1,690,124.40 × 680,822.28
  4. Step 4: Simplify right side
    1,224,707.40x = 1,150,674,347,491.63
  5. Step 5: Solve for x
    x = 1,150,674,347,491.63/1,224,707.40
  6. Step 6: Final answer
    x = 939,550.42

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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.