Home / 891,117.40-1,336,676.10-859,624.60

Finding the Fourth Proportional to 891,117.40, 1,336,676.10 and 859,624.60

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Solution

The fourth proportional to 891,117.40, 1,336,676.10 and 859,624.60 is: 1,289,436.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,117.40 : 1,336,676.10 = 859,624.60 : x
  2. Step 2: Convert to fraction form
    891,117.40/1,336,676.10 = 859,624.60/x
  3. Step 3: Cross multiply
    891,117.40x = 1,336,676.10 × 859,624.60
  4. Step 4: Simplify right side
    891,117.40x = 1,149,039,657,792.06
  5. Step 5: Solve for x
    x = 1,149,039,657,792.06/891,117.40
  6. Step 6: Final answer
    x = 1,289,436.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.