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Finding the Fourth Proportional to 315,790.62, 469,624.49 and 305,823.57

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Solution

The fourth proportional to 315,790.62, 469,624.49 and 305,823.57 is: 454,802.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,790.62 : 469,624.49 = 305,823.57 : x
  2. Step 2: Convert to fraction form
    315,790.62/469,624.49 = 305,823.57/x
  3. Step 3: Cross multiply
    315,790.62x = 469,624.49 × 305,823.57
  4. Step 4: Simplify right side
    315,790.62x = 143,622,236,562.11
  5. Step 5: Solve for x
    x = 143,622,236,562.11/315,790.62
  6. Step 6: Final answer
    x = 454,802.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.