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Finding the Fourth Proportional to 615,700.20, 923,647.50 and 260,716.44

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Solution

The fourth proportional to 615,700.20, 923,647.50 and 260,716.44 is: 391,115.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,700.20 : 923,647.50 = 260,716.44 : x
  2. Step 2: Convert to fraction form
    615,700.20/923,647.50 = 260,716.44/x
  3. Step 3: Cross multiply
    615,700.20x = 923,647.50 × 260,716.44
  4. Step 4: Simplify right side
    615,700.20x = 240,810,088,014.90
  5. Step 5: Solve for x
    x = 240,810,088,014.90/615,700.20
  6. Step 6: Final answer
    x = 391,115.82

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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.