Home / 1,290,932.52-1,932,613.44-905,344.98

Finding the Fourth Proportional to 1,290,932.52, 1,932,613.44 and 905,344.98

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Solution

The fourth proportional to 1,290,932.52, 1,932,613.44 and 905,344.98 is: 1,355,362.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,932.52 : 1,932,613.44 = 905,344.98 : x
  2. Step 2: Convert to fraction form
    1,290,932.52/1,932,613.44 = 905,344.98/x
  3. Step 3: Cross multiply
    1,290,932.52x = 1,932,613.44 × 905,344.98
  4. Step 4: Simplify right side
    1,290,932.52x = 1,749,681,876,184.53
  5. Step 5: Solve for x
    x = 1,749,681,876,184.53/1,290,932.52
  6. Step 6: Final answer
    x = 1,355,362.77

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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.