Home / 1,877,885.40-2,591,244.20-1,113,789.72

Finding the Fourth Proportional to 1,877,885.40, 2,591,244.20 and 1,113,789.72

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Solution

The fourth proportional to 1,877,885.40, 2,591,244.20 and 1,113,789.72 is: 1,536,888.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877,885.40 : 2,591,244.20 = 1,113,789.72 : x
  2. Step 2: Convert to fraction form
    1,877,885.40/2,591,244.20 = 1,113,789.72/x
  3. Step 3: Cross multiply
    1,877,885.40x = 2,591,244.20 × 1,113,789.72
  4. Step 4: Simplify right side
    1,877,885.40x = 2,886,101,151,969.62
  5. Step 5: Solve for x
    x = 2,886,101,151,969.62/1,877,885.40
  6. Step 6: Final answer
    x = 1,536,888.86

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Similar ratio
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1.5x scale

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.