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Finding the Fourth Proportional to 488,399.32, 673,776.36 and 294,699

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Solution

The fourth proportional to 488,399.32, 673,776.36 and 294,699 is: 406,555.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,399.32 : 673,776.36 = 294,699 : x
  2. Step 2: Convert to fraction form
    488,399.32/673,776.36 = 294,699/x
  3. Step 3: Cross multiply
    488,399.32x = 673,776.36 × 294,699
  4. Step 4: Simplify right side
    488,399.32x = 198,561,219,515.64
  5. Step 5: Solve for x
    x = 198,561,219,515.64/488,399.32
  6. Step 6: Final answer
    x = 406,555.07

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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.