Home / 1,237,421.80-1,853,022.30-988,589.80

Finding the Fourth Proportional to 1,237,421.80, 1,853,022.30 and 988,589.80

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Solution

The fourth proportional to 1,237,421.80, 1,853,022.30 and 988,589.80 is: 1,480,399.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,421.80 : 1,853,022.30 = 988,589.80 : x
  2. Step 2: Convert to fraction form
    1,237,421.80/1,853,022.30 = 988,589.80/x
  3. Step 3: Cross multiply
    1,237,421.80x = 1,853,022.30 × 988,589.80
  4. Step 4: Simplify right side
    1,237,421.80x = 1,831,878,944,952.54
  5. Step 5: Solve for x
    x = 1,831,878,944,952.54/1,237,421.80
  6. Step 6: Final answer
    x = 1,480,399.77

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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.