Home / 1,420,678.46-2,131,858.42-522,750.76

Finding the Fourth Proportional to 1,420,678.46, 2,131,858.42 and 522,750.76

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Solution

The fourth proportional to 1,420,678.46, 2,131,858.42 and 522,750.76 is: 784,435.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,678.46 : 2,131,858.42 = 522,750.76 : x
  2. Step 2: Convert to fraction form
    1,420,678.46/2,131,858.42 = 522,750.76/x
  3. Step 3: Cross multiply
    1,420,678.46x = 2,131,858.42 × 522,750.76
  4. Step 4: Simplify right side
    1,420,678.46x = 1,114,430,609,267.40
  5. Step 5: Solve for x
    x = 1,114,430,609,267.40/1,420,678.46
  6. Step 6: Final answer
    x = 784,435.49

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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.