Home / 1,432,548.76-2,148,589.53-421,434.34

Finding the Fourth Proportional to 1,432,548.76, 2,148,589.53 and 421,434.34

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Solution

The fourth proportional to 1,432,548.76, 2,148,589.53 and 421,434.34 is: 632,082.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,548.76 : 2,148,589.53 = 421,434.34 : x
  2. Step 2: Convert to fraction form
    1,432,548.76/2,148,589.53 = 421,434.34/x
  3. Step 3: Cross multiply
    1,432,548.76x = 2,148,589.53 × 421,434.34
  4. Step 4: Simplify right side
    1,432,548.76x = 905,489,410,506.46
  5. Step 5: Solve for x
    x = 905,489,410,506.46/1,432,548.76
  6. Step 6: Final answer
    x = 632,082.79

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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.