Home / 1,403,476.72-2,105,379.60-492,380.64

Finding the Fourth Proportional to 1,403,476.72, 2,105,379.60 and 492,380.64

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Solution

The fourth proportional to 1,403,476.72, 2,105,379.60 and 492,380.64 is: 738,628.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403,476.72 : 2,105,379.60 = 492,380.64 : x
  2. Step 2: Convert to fraction form
    1,403,476.72/2,105,379.60 = 492,380.64/x
  3. Step 3: Cross multiply
    1,403,476.72x = 2,105,379.60 × 492,380.64
  4. Step 4: Simplify right side
    1,403,476.72x = 1,036,648,154,890.94
  5. Step 5: Solve for x
    x = 1,036,648,154,890.94/1,403,476.72
  6. Step 6: Final answer
    x = 738,628.68

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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.