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Finding the Fourth Proportional to 615,086.80, 923,321.40 and 475,464.40

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Solution

The fourth proportional to 615,086.80, 923,321.40 and 475,464.40 is: 713,730.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,086.80 : 923,321.40 = 475,464.40 : x
  2. Step 2: Convert to fraction form
    615,086.80/923,321.40 = 475,464.40/x
  3. Step 3: Cross multiply
    615,086.80x = 923,321.40 × 475,464.40
  4. Step 4: Simplify right side
    615,086.80x = 439,006,455,458.16
  5. Step 5: Solve for x
    x = 439,006,455,458.16/615,086.80
  6. Step 6: Final answer
    x = 713,730.90

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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.