Home / 810,923.96-1,119,055.34-448,338.48

Finding the Fourth Proportional to 810,923.96, 1,119,055.34 and 448,338.48

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Solution

The fourth proportional to 810,923.96, 1,119,055.34 and 448,338.48 is: 618,696.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,923.96 : 1,119,055.34 = 448,338.48 : x
  2. Step 2: Convert to fraction form
    810,923.96/1,119,055.34 = 448,338.48/x
  3. Step 3: Cross multiply
    810,923.96x = 1,119,055.34 × 448,338.48
  4. Step 4: Simplify right side
    810,923.96x = 501,715,570,171.48
  5. Step 5: Solve for x
    x = 501,715,570,171.48/810,923.96
  6. Step 6: Final answer
    x = 618,696.20

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Double scale
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1.5x scale

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.