Home / 1,993,000.20-2,989,500.30-730,663.80

Finding the Fourth Proportional to 1,993,000.20, 2,989,500.30 and 730,663.80

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Solution

The fourth proportional to 1,993,000.20, 2,989,500.30 and 730,663.80 is: 1,095,995.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,000.20 : 2,989,500.30 = 730,663.80 : x
  2. Step 2: Convert to fraction form
    1,993,000.20/2,989,500.30 = 730,663.80/x
  3. Step 3: Cross multiply
    1,993,000.20x = 2,989,500.30 × 730,663.80
  4. Step 4: Simplify right side
    1,993,000.20x = 2,184,319,649,299.14
  5. Step 5: Solve for x
    x = 2,184,319,649,299.14/1,993,000.20
  6. Step 6: Final answer
    x = 1,095,995.70

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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.