Home / 4,300,435.76-6,449,116.64-1,421,269.70

Finding the Fourth Proportional to 4,300,435.76, 6,449,116.64 and 1,421,269.70

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Solution

The fourth proportional to 4,300,435.76, 6,449,116.64 and 1,421,269.70 is: 2,131,396.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,300,435.76 : 6,449,116.64 = 1,421,269.70 : x
  2. Step 2: Convert to fraction form
    4,300,435.76/6,449,116.64 = 1,421,269.70/x
  3. Step 3: Cross multiply
    4,300,435.76x = 6,449,116.64 × 1,421,269.70
  4. Step 4: Simplify right side
    4,300,435.76x = 9,165,934,072,197.81
  5. Step 5: Solve for x
    x = 9,165,934,072,197.81/4,300,435.76
  6. Step 6: Final answer
    x = 2,131,396.58

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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.