Home / 849,322.71-1,273,984.06-309,619.46

Finding the Fourth Proportional to 849,322.71, 1,273,984.06 and 309,619.46

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Solution

The fourth proportional to 849,322.71, 1,273,984.06 and 309,619.46 is: 464,429.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,322.71 : 1,273,984.06 = 309,619.46 : x
  2. Step 2: Convert to fraction form
    849,322.71/1,273,984.06 = 309,619.46/x
  3. Step 3: Cross multiply
    849,322.71x = 1,273,984.06 × 309,619.46
  4. Step 4: Simplify right side
    849,322.71x = 394,450,255,157.71
  5. Step 5: Solve for x
    x = 394,450,255,157.71/849,322.71
  6. Step 6: Final answer
    x = 464,429.19

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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.