Home / 2,998,829.76-4,138,488.40-1,640,702.80

Finding the Fourth Proportional to 2,998,829.76, 4,138,488.40 and 1,640,702.80

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Solution

The fourth proportional to 2,998,829.76, 4,138,488.40 and 1,640,702.80 is: 2,264,226.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998,829.76 : 4,138,488.40 = 1,640,702.80 : x
  2. Step 2: Convert to fraction form
    2,998,829.76/4,138,488.40 = 1,640,702.80/x
  3. Step 3: Cross multiply
    2,998,829.76x = 4,138,488.40 × 1,640,702.80
  4. Step 4: Simplify right side
    2,998,829.76x = 6,790,029,505,647.52
  5. Step 5: Solve for x
    x = 6,790,029,505,647.52/2,998,829.76
  6. Step 6: Final answer
    x = 2,264,226.40

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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.