Home / 899,133.20-1,240,889.64-491,297.04

Finding the Fourth Proportional to 899,133.20, 1,240,889.64 and 491,297.04

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Solution

The fourth proportional to 899,133.20, 1,240,889.64 and 491,297.04 is: 678,036.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,133.20 : 1,240,889.64 = 491,297.04 : x
  2. Step 2: Convert to fraction form
    899,133.20/1,240,889.64 = 491,297.04/x
  3. Step 3: Cross multiply
    899,133.20x = 1,240,889.64 × 491,297.04
  4. Step 4: Simplify right side
    899,133.20x = 609,645,407,098.67
  5. Step 5: Solve for x
    x = 609,645,407,098.67/899,133.20
  6. Step 6: Final answer
    x = 678,036.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.