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Finding the Fourth Proportional to 490,285.92, 676,571.76 and 272,484.48

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Solution

The fourth proportional to 490,285.92, 676,571.76 and 272,484.48 is: 376,015.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,285.92 : 676,571.76 = 272,484.48 : x
  2. Step 2: Convert to fraction form
    490,285.92/676,571.76 = 272,484.48/x
  3. Step 3: Cross multiply
    490,285.92x = 676,571.76 × 272,484.48
  4. Step 4: Simplify right side
    490,285.92x = 184,355,304,206.29
  5. Step 5: Solve for x
    x = 184,355,304,206.29/490,285.92
  6. Step 6: Final answer
    x = 376,015.91

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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.