Home / 1,523,918.87-2,102,927.19-870,416.54

Finding the Fourth Proportional to 1,523,918.87, 2,102,927.19 and 870,416.54

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Solution

The fourth proportional to 1,523,918.87, 2,102,927.19 and 870,416.54 is: 1,201,128.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,523,918.87 : 2,102,927.19 = 870,416.54 : x
  2. Step 2: Convert to fraction form
    1,523,918.87/2,102,927.19 = 870,416.54/x
  3. Step 3: Cross multiply
    1,523,918.87x = 2,102,927.19 × 870,416.54
  4. Step 4: Simplify right side
    1,523,918.87x = 1,830,422,608,591.72
  5. Step 5: Solve for x
    x = 1,830,422,608,591.72/1,523,918.87
  6. Step 6: Final answer
    x = 1,201,128.65

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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.