Home / 1,330,418.92-1,996,415.82-489,561.16

Finding the Fourth Proportional to 1,330,418.92, 1,996,415.82 and 489,561.16

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Solution

The fourth proportional to 1,330,418.92, 1,996,415.82 and 489,561.16 is: 734,631.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,418.92 : 1,996,415.82 = 489,561.16 : x
  2. Step 2: Convert to fraction form
    1,330,418.92/1,996,415.82 = 489,561.16/x
  3. Step 3: Cross multiply
    1,330,418.92x = 1,996,415.82 × 489,561.16
  4. Step 4: Simplify right side
    1,330,418.92x = 977,367,644,681.55
  5. Step 5: Solve for x
    x = 977,367,644,681.55/1,330,418.92
  6. Step 6: Final answer
    x = 734,631.50

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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.