Home / 690,123.48-1,035,289.71-216,764.34

Finding the Fourth Proportional to 690,123.48, 1,035,289.71 and 216,764.34

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Solution

The fourth proportional to 690,123.48, 1,035,289.71 and 216,764.34 is: 325,179.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,123.48 : 1,035,289.71 = 216,764.34 : x
  2. Step 2: Convert to fraction form
    690,123.48/1,035,289.71 = 216,764.34/x
  3. Step 3: Cross multiply
    690,123.48x = 1,035,289.71 × 216,764.34
  4. Step 4: Simplify right side
    690,123.48x = 224,413,890,696.94
  5. Step 5: Solve for x
    x = 224,413,890,696.94/690,123.48
  6. Step 6: Final answer
    x = 325,179.33

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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.