Home / 1,101,811.78-1,521,103.58-771,176.59

Finding the Fourth Proportional to 1,101,811.78, 1,521,103.58 and 771,176.59

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Solution

The fourth proportional to 1,101,811.78, 1,521,103.58 and 771,176.59 is: 1,064,645.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,811.78 : 1,521,103.58 = 771,176.59 : x
  2. Step 2: Convert to fraction form
    1,101,811.78/1,521,103.58 = 771,176.59/x
  3. Step 3: Cross multiply
    1,101,811.78x = 1,521,103.58 × 771,176.59
  4. Step 4: Simplify right side
    1,101,811.78x = 1,173,039,471,861.19
  5. Step 5: Solve for x
    x = 1,173,039,471,861.19/1,101,811.78
  6. Step 6: Final answer
    x = 1,064,645.97

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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.