Home / 920,867.76-1,271,324.25-611,190.32

Finding the Fourth Proportional to 920,867.76, 1,271,324.25 and 611,190.32

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Solution

The fourth proportional to 920,867.76, 1,271,324.25 and 611,190.32 is: 843,792.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,867.76 : 1,271,324.25 = 611,190.32 : x
  2. Step 2: Convert to fraction form
    920,867.76/1,271,324.25 = 611,190.32/x
  3. Step 3: Cross multiply
    920,867.76x = 1,271,324.25 × 611,190.32
  4. Step 4: Simplify right side
    920,867.76x = 777,021,068,824.64
  5. Step 5: Solve for x
    x = 777,021,068,824.64/920,867.76
  6. Step 6: Final answer
    x = 843,792.24

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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.