Home / 1,941,124.20-2,911,686.30-678,820.20

Finding the Fourth Proportional to 1,941,124.20, 2,911,686.30 and 678,820.20

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Solution

The fourth proportional to 1,941,124.20, 2,911,686.30 and 678,820.20 is: 1,018,230.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941,124.20 : 2,911,686.30 = 678,820.20 : x
  2. Step 2: Convert to fraction form
    1,941,124.20/2,911,686.30 = 678,820.20/x
  3. Step 3: Cross multiply
    1,941,124.20x = 2,911,686.30 × 678,820.20
  4. Step 4: Simplify right side
    1,941,124.20x = 1,976,511,476,503.26
  5. Step 5: Solve for x
    x = 1,976,511,476,503.26/1,941,124.20
  6. Step 6: Final answer
    x = 1,018,230.30

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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.