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Finding the Fourth Proportional to 892,353.99, 1,341,001.31 and 870,722.57

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Solution

The fourth proportional to 892,353.99, 1,341,001.31 and 870,722.57 is: 1,308,494.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,353.99 : 1,341,001.31 = 870,722.57 : x
  2. Step 2: Convert to fraction form
    892,353.99/1,341,001.31 = 870,722.57/x
  3. Step 3: Cross multiply
    892,353.99x = 1,341,001.31 × 870,722.57
  4. Step 4: Simplify right side
    892,353.99x = 1,167,640,106,015.46
  5. Step 5: Solve for x
    x = 1,167,640,106,015.46/892,353.99
  6. Step 6: Final answer
    x = 1,308,494.29

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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.