Home / 1,938,861.50-2,909,620.71-676,689.12

Finding the Fourth Proportional to 1,938,861.50, 2,909,620.71 and 676,689.12

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Solution

The fourth proportional to 1,938,861.50, 2,909,620.71 and 676,689.12 is: 1,015,497.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938,861.50 : 2,909,620.71 = 676,689.12 : x
  2. Step 2: Convert to fraction form
    1,938,861.50/2,909,620.71 = 676,689.12/x
  3. Step 3: Cross multiply
    1,938,861.50x = 2,909,620.71 × 676,689.12
  4. Step 4: Simplify right side
    1,938,861.50x = 1,968,908,677,783.68
  5. Step 5: Solve for x
    x = 1,968,908,677,783.68/1,938,861.50
  6. Step 6: Final answer
    x = 1,015,497.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.