Home / 1,100,768.32-1,518,445.20-692,717.86

Finding the Fourth Proportional to 1,100,768.32, 1,518,445.20 and 692,717.86

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Solution

The fourth proportional to 1,100,768.32, 1,518,445.20 and 692,717.86 is: 955,563.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,768.32 : 1,518,445.20 = 692,717.86 : x
  2. Step 2: Convert to fraction form
    1,100,768.32/1,518,445.20 = 692,717.86/x
  3. Step 3: Cross multiply
    1,100,768.32x = 1,518,445.20 × 692,717.86
  4. Step 4: Simplify right side
    1,100,768.32x = 1,051,854,109,471.27
  5. Step 5: Solve for x
    x = 1,051,854,109,471.27/1,100,768.32
  6. Step 6: Final answer
    x = 955,563.57

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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.