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Finding the Fourth Proportional to 488,281, 673,771.06 and 284,376.52

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Solution

The fourth proportional to 488,281, 673,771.06 and 284,376.52 is: 392,406.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,281 : 673,771.06 = 284,376.52 : x
  2. Step 2: Convert to fraction form
    488,281/673,771.06 = 284,376.52/x
  3. Step 3: Cross multiply
    488,281x = 673,771.06 × 284,376.52
  4. Step 4: Simplify right side
    488,281x = 191,604,669,319.51
  5. Step 5: Solve for x
    x = 191,604,669,319.51/488,281
  6. Step 6: Final answer
    x = 392,406.56

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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.