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Finding the Fourth Proportional to 893,085.60, 1,339,628.40 and 886,864.80

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Solution

The fourth proportional to 893,085.60, 1,339,628.40 and 886,864.80 is: 1,330,297.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,085.60 : 1,339,628.40 = 886,864.80 : x
  2. Step 2: Convert to fraction form
    893,085.60/1,339,628.40 = 886,864.80/x
  3. Step 3: Cross multiply
    893,085.60x = 1,339,628.40 × 886,864.80
  4. Step 4: Simplify right side
    893,085.60x = 1,188,069,273,040.32
  5. Step 5: Solve for x
    x = 1,188,069,273,040.32/893,085.60
  6. Step 6: Final answer
    x = 1,330,297.20

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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.