Home / 1,330,785.10-1,996,177.65-489,664.90

Finding the Fourth Proportional to 1,330,785.10, 1,996,177.65 and 489,664.90

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Solution

The fourth proportional to 1,330,785.10, 1,996,177.65 and 489,664.90 is: 734,497.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,785.10 : 1,996,177.65 = 489,664.90 : x
  2. Step 2: Convert to fraction form
    1,330,785.10/1,996,177.65 = 489,664.90/x
  3. Step 3: Cross multiply
    1,330,785.10x = 1,996,177.65 × 489,664.90
  4. Step 4: Simplify right side
    1,330,785.10x = 977,458,129,369.49
  5. Step 5: Solve for x
    x = 977,458,129,369.49/1,330,785.10
  6. Step 6: Final answer
    x = 734,497.35

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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.