Home / 1,913,919.61-2,641,268.88-1,098,272.50

Finding the Fourth Proportional to 1,913,919.61, 2,641,268.88 and 1,098,272.50

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Solution

The fourth proportional to 1,913,919.61, 2,641,268.88 and 1,098,272.50 is: 1,515,650.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,919.61 : 2,641,268.88 = 1,098,272.50 : x
  2. Step 2: Convert to fraction form
    1,913,919.61/2,641,268.88 = 1,098,272.50/x
  3. Step 3: Cross multiply
    1,913,919.61x = 2,641,268.88 × 1,098,272.50
  4. Step 4: Simplify right side
    1,913,919.61x = 2,900,832,976,009.80
  5. Step 5: Solve for x
    x = 2,900,832,976,009.80/1,913,919.61
  6. Step 6: Final answer
    x = 1,515,650.38

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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.