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Finding the Fourth Proportional to 658,500.66, 908,730.93 and 356,694.66

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Solution

The fourth proportional to 658,500.66, 908,730.93 and 356,694.66 is: 492,238.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,500.66 : 908,730.93 = 356,694.66 : x
  2. Step 2: Convert to fraction form
    658,500.66/908,730.93 = 356,694.66/x
  3. Step 3: Cross multiply
    658,500.66x = 908,730.93 × 356,694.66
  4. Step 4: Simplify right side
    658,500.66x = 324,139,470,107.83
  5. Step 5: Solve for x
    x = 324,139,470,107.83/658,500.66
  6. Step 6: Final answer
    x = 492,238.64

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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.