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Finding the Fourth Proportional to 579,814.08, 870,018 and 264,230.40

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Solution

The fourth proportional to 579,814.08, 870,018 and 264,230.40 is: 396,480.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,814.08 : 870,018 = 264,230.40 : x
  2. Step 2: Convert to fraction form
    579,814.08/870,018 = 264,230.40/x
  3. Step 3: Cross multiply
    579,814.08x = 870,018 × 264,230.40
  4. Step 4: Simplify right side
    579,814.08x = 229,885,204,147.20
  5. Step 5: Solve for x
    x = 229,885,204,147.20/579,814.08
  6. Step 6: Final answer
    x = 396,480.89

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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.