Home / 3,578,827.50-4,938,781.95-1,969,195.50

Finding the Fourth Proportional to 3,578,827.50, 4,938,781.95 and 1,969,195.50

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Solution

The fourth proportional to 3,578,827.50, 4,938,781.95 and 1,969,195.50 is: 2,717,489.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578,827.50 : 4,938,781.95 = 1,969,195.50 : x
  2. Step 2: Convert to fraction form
    3,578,827.50/4,938,781.95 = 1,969,195.50/x
  3. Step 3: Cross multiply
    3,578,827.50x = 4,938,781.95 × 1,969,195.50
  4. Step 4: Simplify right side
    3,578,827.50x = 9,725,427,191,421.23
  5. Step 5: Solve for x
    x = 9,725,427,191,421.23/3,578,827.50
  6. Step 6: Final answer
    x = 2,717,489.79

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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.