Home / 1,432,518.46-2,148,544.10-421,403.90

Finding the Fourth Proportional to 1,432,518.46, 2,148,544.10 and 421,403.90

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Solution

The fourth proportional to 1,432,518.46, 2,148,544.10 and 421,403.90 is: 632,037.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,518.46 : 2,148,544.10 = 421,403.90 : x
  2. Step 2: Convert to fraction form
    1,432,518.46/2,148,544.10 = 421,403.90/x
  3. Step 3: Cross multiply
    1,432,518.46x = 2,148,544.10 × 421,403.90
  4. Step 4: Simplify right side
    1,432,518.46x = 905,404,853,372.78
  5. Step 5: Solve for x
    x = 905,404,853,372.78/1,432,518.46
  6. Step 6: Final answer
    x = 632,037.13

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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.