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Finding the Fourth Proportional to 630,546.62, 870,175.35 and 344,082.43

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Solution

The fourth proportional to 630,546.62, 870,175.35 and 344,082.43 is: 474,845.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,546.62 : 870,175.35 = 344,082.43 : x
  2. Step 2: Convert to fraction form
    630,546.62/870,175.35 = 344,082.43/x
  3. Step 3: Cross multiply
    630,546.62x = 870,175.35 × 344,082.43
  4. Step 4: Simplify right side
    630,546.62x = 299,412,042,882.81
  5. Step 5: Solve for x
    x = 299,412,042,882.81/630,546.62
  6. Step 6: Final answer
    x = 474,845.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.