Home / 459,957.12-689,935.74-206,942.04

Finding the Fourth Proportional to 459,957.12, 689,935.74 and 206,942.04

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Solution

The fourth proportional to 459,957.12, 689,935.74 and 206,942.04 is: 310,413.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,957.12 : 689,935.74 = 206,942.04 : x
  2. Step 2: Convert to fraction form
    459,957.12/689,935.74 = 206,942.04/x
  3. Step 3: Cross multiply
    459,957.12x = 689,935.74 × 206,942.04
  4. Step 4: Simplify right side
    459,957.12x = 142,776,709,504.51
  5. Step 5: Solve for x
    x = 142,776,709,504.51/459,957.12
  6. Step 6: Final answer
    x = 310,413.09

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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.