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Finding the Fourth Proportional to 490,804.60, 736,061.10 and 191,112.70

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Solution

The fourth proportional to 490,804.60, 736,061.10 and 191,112.70 is: 286,612.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,804.60 : 736,061.10 = 191,112.70 : x
  2. Step 2: Convert to fraction form
    490,804.60/736,061.10 = 191,112.70/x
  3. Step 3: Cross multiply
    490,804.60x = 736,061.10 × 191,112.70
  4. Step 4: Simplify right side
    490,804.60x = 140,670,624,185.97
  5. Step 5: Solve for x
    x = 140,670,624,185.97/490,804.60
  6. Step 6: Final answer
    x = 286,612.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.