Home / 2,112,021.30-3,168,809.55-692,123.70

Finding the Fourth Proportional to 2,112,021.30, 3,168,809.55 and 692,123.70

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Solution

The fourth proportional to 2,112,021.30, 3,168,809.55 and 692,123.70 is: 1,038,440.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112,021.30 : 3,168,809.55 = 692,123.70 : x
  2. Step 2: Convert to fraction form
    2,112,021.30/3,168,809.55 = 692,123.70/x
  3. Step 3: Cross multiply
    2,112,021.30x = 3,168,809.55 × 692,123.70
  4. Step 4: Simplify right side
    2,112,021.30x = 2,193,208,190,341.33
  5. Step 5: Solve for x
    x = 2,193,208,190,341.33/2,112,021.30
  6. Step 6: Final answer
    x = 1,038,440.37

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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.