Home / 1,211,280.40-1,671,544.92-667,466.38

Finding the Fourth Proportional to 1,211,280.40, 1,671,544.92 and 667,466.38

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Solution

The fourth proportional to 1,211,280.40, 1,671,544.92 and 667,466.38 is: 921,091.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,280.40 : 1,671,544.92 = 667,466.38 : x
  2. Step 2: Convert to fraction form
    1,211,280.40/1,671,544.92 = 667,466.38/x
  3. Step 3: Cross multiply
    1,211,280.40x = 1,671,544.92 × 667,466.38
  4. Step 4: Simplify right side
    1,211,280.40x = 1,115,700,036,759.79
  5. Step 5: Solve for x
    x = 1,115,700,036,759.79/1,211,280.40
  6. Step 6: Final answer
    x = 921,091.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.