Home / 1,913,638.32-2,640,639.14-1,097,909.18

Finding the Fourth Proportional to 1,913,638.32, 2,640,639.14 and 1,097,909.18

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Solution

The fourth proportional to 1,913,638.32, 2,640,639.14 and 1,097,909.18 is: 1,515,010.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,638.32 : 2,640,639.14 = 1,097,909.18 : x
  2. Step 2: Convert to fraction form
    1,913,638.32/2,640,639.14 = 1,097,909.18/x
  3. Step 3: Cross multiply
    1,913,638.32x = 2,640,639.14 × 1,097,909.18
  4. Step 4: Simplify right side
    1,913,638.32x = 2,899,181,952,873.31
  5. Step 5: Solve for x
    x = 2,899,181,952,873.31/1,913,638.32
  6. Step 6: Final answer
    x = 1,515,010.40

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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.