Home / 1,111,920.72-1,534,439.40-621,885.08

Finding the Fourth Proportional to 1,111,920.72, 1,534,439.40 and 621,885.08

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Solution

The fourth proportional to 1,111,920.72, 1,534,439.40 and 621,885.08 is: 858,195.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,920.72 : 1,534,439.40 = 621,885.08 : x
  2. Step 2: Convert to fraction form
    1,111,920.72/1,534,439.40 = 621,885.08/x
  3. Step 3: Cross multiply
    1,111,920.72x = 1,534,439.40 × 621,885.08
  4. Step 4: Simplify right side
    1,111,920.72x = 954,244,969,024.15
  5. Step 5: Solve for x
    x = 954,244,969,024.15/1,111,920.72
  6. Step 6: Final answer
    x = 858,195.15

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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.