Home / 810,696.87-1,118,830.73-471,143.25

Finding the Fourth Proportional to 810,696.87, 1,118,830.73 and 471,143.25

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Solution

The fourth proportional to 810,696.87, 1,118,830.73 and 471,143.25 is: 650,217.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,696.87 : 1,118,830.73 = 471,143.25 : x
  2. Step 2: Convert to fraction form
    810,696.87/1,118,830.73 = 471,143.25/x
  3. Step 3: Cross multiply
    810,696.87x = 1,118,830.73 × 471,143.25
  4. Step 4: Simplify right side
    810,696.87x = 527,129,543,976.36
  5. Step 5: Solve for x
    x = 527,129,543,976.36/810,696.87
  6. Step 6: Final answer
    x = 650,217.81

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Double scale
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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.