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Finding the Fourth Proportional to 615,932.20, 923,207.10 and 349,820.20

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Solution

The fourth proportional to 615,932.20, 923,207.10 and 349,820.20 is: 524,337.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,932.20 : 923,207.10 = 349,820.20 : x
  2. Step 2: Convert to fraction form
    615,932.20/923,207.10 = 349,820.20/x
  3. Step 3: Cross multiply
    615,932.20x = 923,207.10 × 349,820.20
  4. Step 4: Simplify right side
    615,932.20x = 322,956,492,363.42
  5. Step 5: Solve for x
    x = 322,956,492,363.42/615,932.20
  6. Step 6: Final answer
    x = 524,337.73

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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.