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Finding the Fourth Proportional to 615,183.30, 923,624.64 and 425,175.12

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Solution

The fourth proportional to 615,183.30, 923,624.64 and 425,175.12 is: 638,349.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,183.30 : 923,624.64 = 425,175.12 : x
  2. Step 2: Convert to fraction form
    615,183.30/923,624.64 = 425,175.12/x
  3. Step 3: Cross multiply
    615,183.30x = 923,624.64 × 425,175.12
  4. Step 4: Simplify right side
    615,183.30x = 392,702,217,146.96
  5. Step 5: Solve for x
    x = 392,702,217,146.96/615,183.30
  6. Step 6: Final answer
    x = 638,349.93

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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.