Home / 1,938,862.26-2,909,621.85-676,689.87

Finding the Fourth Proportional to 1,938,862.26, 2,909,621.85 and 676,689.87

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Solution

The fourth proportional to 1,938,862.26, 2,909,621.85 and 676,689.87 is: 1,015,498.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938,862.26 : 2,909,621.85 = 676,689.87 : x
  2. Step 2: Convert to fraction form
    1,938,862.26/2,909,621.85 = 676,689.87/x
  3. Step 3: Cross multiply
    1,938,862.26x = 2,909,621.85 × 676,689.87
  4. Step 4: Simplify right side
    1,938,862.26x = 1,968,911,631,425.66
  5. Step 5: Solve for x
    x = 1,968,911,631,425.66/1,938,862.26
  6. Step 6: Final answer
    x = 1,015,498.46

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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.