Home / 853,504.57-1,280,322.20-254,419.93

Finding the Fourth Proportional to 853,504.57, 1,280,322.20 and 254,419.93

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Solution

The fourth proportional to 853,504.57, 1,280,322.20 and 254,419.93 is: 381,649.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,504.57 : 1,280,322.20 = 254,419.93 : x
  2. Step 2: Convert to fraction form
    853,504.57/1,280,322.20 = 254,419.93/x
  3. Step 3: Cross multiply
    853,504.57x = 1,280,322.20 × 254,419.93
  4. Step 4: Simplify right side
    853,504.57x = 325,739,484,501.45
  5. Step 5: Solve for x
    x = 325,739,484,501.45/853,504.57
  6. Step 6: Final answer
    x = 381,649.37

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1.5x scale

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.