Home / 2,998,800.40-4,138,443.24-1,640,642.32

Finding the Fourth Proportional to 2,998,800.40, 4,138,443.24 and 1,640,642.32

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Solution

The fourth proportional to 2,998,800.40, 4,138,443.24 and 1,640,642.32 is: 2,264,140.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998,800.40 : 4,138,443.24 = 1,640,642.32 : x
  2. Step 2: Convert to fraction form
    2,998,800.40/4,138,443.24 = 1,640,642.32/x
  3. Step 3: Cross multiply
    2,998,800.40x = 4,138,443.24 × 1,640,642.32
  4. Step 4: Simplify right side
    2,998,800.40x = 6,789,705,118,461.92
  5. Step 5: Solve for x
    x = 6,789,705,118,461.92/2,998,800.40
  6. Step 6: Final answer
    x = 2,264,140.39

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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.