Home / 849,324.09-1,273,985.95-309,620.83

Finding the Fourth Proportional to 849,324.09, 1,273,985.95 and 309,620.83

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Solution

The fourth proportional to 849,324.09, 1,273,985.95 and 309,620.83 is: 464,431.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,324.09 : 1,273,985.95 = 309,620.83 : x
  2. Step 2: Convert to fraction form
    849,324.09/1,273,985.95 = 309,620.83/x
  3. Step 3: Cross multiply
    849,324.09x = 1,273,985.95 × 309,620.83
  4. Step 4: Simplify right side
    849,324.09x = 394,452,587,247.34
  5. Step 5: Solve for x
    x = 394,452,587,247.34/849,324.09
  6. Step 6: Final answer
    x = 464,431.18

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Similar ratio
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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.