Home / 788,579.72-1,087,106.92-561,831.56

Finding the Fourth Proportional to 788,579.72, 1,087,106.92 and 561,831.56

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Solution

The fourth proportional to 788,579.72, 1,087,106.92 and 561,831.56 is: 774,520.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,579.72 : 1,087,106.92 = 561,831.56 : x
  2. Step 2: Convert to fraction form
    788,579.72/1,087,106.92 = 561,831.56/x
  3. Step 3: Cross multiply
    788,579.72x = 1,087,106.92 × 561,831.56
  4. Step 4: Simplify right side
    788,579.72x = 610,770,976,750.40
  5. Step 5: Solve for x
    x = 610,770,976,750.40/788,579.72
  6. Step 6: Final answer
    x = 774,520.27

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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.