Home / 1,999,702.20-2,990,805.30-1,788,000.60

Finding the Fourth Proportional to 1,999,702.20, 2,990,805.30 and 1,788,000.60

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Solution

The fourth proportional to 1,999,702.20, 2,990,805.30 and 1,788,000.60 is: 2,674,179.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999,702.20 : 2,990,805.30 = 1,788,000.60 : x
  2. Step 2: Convert to fraction form
    1,999,702.20/2,990,805.30 = 1,788,000.60/x
  3. Step 3: Cross multiply
    1,999,702.20x = 2,990,805.30 × 1,788,000.60
  4. Step 4: Simplify right side
    1,999,702.20x = 5,347,561,670,883.18
  5. Step 5: Solve for x
    x = 5,347,561,670,883.18/1,999,702.20
  6. Step 6: Final answer
    x = 2,674,179.02

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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.