Home / 1,288,796.10-1,932,465.15-490,103.70

Finding the Fourth Proportional to 1,288,796.10, 1,932,465.15 and 490,103.70

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Solution

The fourth proportional to 1,288,796.10, 1,932,465.15 and 490,103.70 is: 734,878.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,796.10 : 1,932,465.15 = 490,103.70 : x
  2. Step 2: Convert to fraction form
    1,288,796.10/1,932,465.15 = 490,103.70/x
  3. Step 3: Cross multiply
    1,288,796.10x = 1,932,465.15 × 490,103.70
  4. Step 4: Simplify right side
    1,288,796.10x = 947,108,320,136.06
  5. Step 5: Solve for x
    x = 947,108,320,136.06/1,288,796.10
  6. Step 6: Final answer
    x = 734,878.33

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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.