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Finding the Fourth Proportional to 488,117.30, 673,485.91 and 284,044.68

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Solution

The fourth proportional to 488,117.30, 673,485.91 and 284,044.68 is: 391,914.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,117.30 : 673,485.91 = 284,044.68 : x
  2. Step 2: Convert to fraction form
    488,117.30/673,485.91 = 284,044.68/x
  3. Step 3: Cross multiply
    488,117.30x = 673,485.91 × 284,044.68
  4. Step 4: Simplify right side
    488,117.30x = 191,300,089,080.35
  5. Step 5: Solve for x
    x = 191,300,089,080.35/488,117.30
  6. Step 6: Final answer
    x = 391,914.18

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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.