Home / 690,879.92-1,036,357.04-217,602.32

Finding the Fourth Proportional to 690,879.92, 1,036,357.04 and 217,602.32

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Solution

The fourth proportional to 690,879.92, 1,036,357.04 and 217,602.32 is: 326,415.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,879.92 : 1,036,357.04 = 217,602.32 : x
  2. Step 2: Convert to fraction form
    690,879.92/1,036,357.04 = 217,602.32/x
  3. Step 3: Cross multiply
    690,879.92x = 1,036,357.04 × 217,602.32
  4. Step 4: Simplify right side
    690,879.92x = 225,513,696,252.33
  5. Step 5: Solve for x
    x = 225,513,696,252.33/690,879.92
  6. Step 6: Final answer
    x = 326,415.18

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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.