Home / 1,432,508.85-2,148,529.74-421,394.34

Finding the Fourth Proportional to 1,432,508.85, 2,148,529.74 and 421,394.34

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Solution

The fourth proportional to 1,432,508.85, 2,148,529.74 and 421,394.34 is: 632,022.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,508.85 : 2,148,529.74 = 421,394.34 : x
  2. Step 2: Convert to fraction form
    1,432,508.85/2,148,529.74 = 421,394.34/x
  3. Step 3: Cross multiply
    1,432,508.85x = 2,148,529.74 × 421,394.34
  4. Step 4: Simplify right side
    1,432,508.85x = 905,378,271,757.67
  5. Step 5: Solve for x
    x = 905,378,271,757.67/1,432,508.85
  6. Step 6: Final answer
    x = 632,022.81

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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.