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Finding the Fourth Proportional to 488,736.05, 674,444.79 and 284,774.27

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Solution

The fourth proportional to 488,736.05, 674,444.79 and 284,774.27 is: 392,982.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,736.05 : 674,444.79 = 284,774.27 : x
  2. Step 2: Convert to fraction form
    488,736.05/674,444.79 = 284,774.27/x
  3. Step 3: Cross multiply
    488,736.05x = 674,444.79 × 284,774.27
  4. Step 4: Simplify right side
    488,736.05x = 192,064,521,303.68
  5. Step 5: Solve for x
    x = 192,064,521,303.68/488,736.05
  6. Step 6: Final answer
    x = 392,982.10

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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.