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Finding the Fourth Proportional to 615,016.80, 923,216.40 and 475,394.40

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Solution

The fourth proportional to 615,016.80, 923,216.40 and 475,394.40 is: 713,625.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,016.80 : 923,216.40 = 475,394.40 : x
  2. Step 2: Convert to fraction form
    615,016.80/923,216.40 = 475,394.40/x
  3. Step 3: Cross multiply
    615,016.80x = 923,216.40 × 475,394.40
  4. Step 4: Simplify right side
    615,016.80x = 438,891,906,548.16
  5. Step 5: Solve for x
    x = 438,891,906,548.16/615,016.80
  6. Step 6: Final answer
    x = 713,625.88

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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.