Home / 1,780,218.90-2,670,328.35-1,181,985.30

Finding the Fourth Proportional to 1,780,218.90, 2,670,328.35 and 1,181,985.30

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Solution

The fourth proportional to 1,780,218.90, 2,670,328.35 and 1,181,985.30 is: 1,772,977.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780,218.90 : 2,670,328.35 = 1,181,985.30 : x
  2. Step 2: Convert to fraction form
    1,780,218.90/2,670,328.35 = 1,181,985.30/x
  3. Step 3: Cross multiply
    1,780,218.90x = 2,670,328.35 × 1,181,985.30
  4. Step 4: Simplify right side
    1,780,218.90x = 3,156,288,855,873.26
  5. Step 5: Solve for x
    x = 3,156,288,855,873.26/1,780,218.90
  6. Step 6: Final answer
    x = 1,772,977.95

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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.