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Finding the Fourth Proportional to 615,231.54, 849,016.74 and 343,283.58

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Solution

The fourth proportional to 615,231.54, 849,016.74 and 343,283.58 is: 473,729.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,231.54 : 849,016.74 = 343,283.58 : x
  2. Step 2: Convert to fraction form
    615,231.54/849,016.74 = 343,283.58/x
  3. Step 3: Cross multiply
    615,231.54x = 849,016.74 × 343,283.58
  4. Step 4: Simplify right side
    615,231.54x = 291,453,505,987.13
  5. Step 5: Solve for x
    x = 291,453,505,987.13/615,231.54
  6. Step 6: Final answer
    x = 473,729.79

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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.