Home / 2,845,520.32-3,926,943.84-1,638,685.12

Finding the Fourth Proportional to 2,845,520.32, 3,926,943.84 and 1,638,685.12

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Solution

The fourth proportional to 2,845,520.32, 3,926,943.84 and 1,638,685.12 is: 2,261,457.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845,520.32 : 3,926,943.84 = 1,638,685.12 : x
  2. Step 2: Convert to fraction form
    2,845,520.32/3,926,943.84 = 1,638,685.12/x
  3. Step 3: Cross multiply
    2,845,520.32x = 3,926,943.84 × 1,638,685.12
  4. Step 4: Simplify right side
    2,845,520.32x = 6,435,024,437,683.66
  5. Step 5: Solve for x
    x = 6,435,024,437,683.66/2,845,520.32
  6. Step 6: Final answer
    x = 2,261,457.91

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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.