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Finding the Fourth Proportional to 630,451.23, 870,022.68 and 404,096.73

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Solution

The fourth proportional to 630,451.23, 870,022.68 and 404,096.73 is: 557,653.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,451.23 : 870,022.68 = 404,096.73 : x
  2. Step 2: Convert to fraction form
    630,451.23/870,022.68 = 404,096.73/x
  3. Step 3: Cross multiply
    630,451.23x = 870,022.68 × 404,096.73
  4. Step 4: Simplify right side
    630,451.23x = 351,573,320,013.84
  5. Step 5: Solve for x
    x = 351,573,320,013.84/630,451.23
  6. Step 6: Final answer
    x = 557,653.48

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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.