Home / 1,690,608.21-2,333,033.37-916,257.85

Finding the Fourth Proportional to 1,690,608.21, 2,333,033.37 and 916,257.85

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Solution

The fourth proportional to 1,690,608.21, 2,333,033.37 and 916,257.85 is: 1,264,432.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690,608.21 : 2,333,033.37 = 916,257.85 : x
  2. Step 2: Convert to fraction form
    1,690,608.21/2,333,033.37 = 916,257.85/x
  3. Step 3: Cross multiply
    1,690,608.21x = 2,333,033.37 × 916,257.85
  4. Step 4: Simplify right side
    1,690,608.21x = 2,137,660,139,574.45
  5. Step 5: Solve for x
    x = 2,137,660,139,574.45/1,690,608.21
  6. Step 6: Final answer
    x = 1,264,432.60

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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.