Home / 1,864,999.90-2,797,499.85-978,420.70

Finding the Fourth Proportional to 1,864,999.90, 2,797,499.85 and 978,420.70

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Solution

The fourth proportional to 1,864,999.90, 2,797,499.85 and 978,420.70 is: 1,467,631.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864,999.90 : 2,797,499.85 = 978,420.70 : x
  2. Step 2: Convert to fraction form
    1,864,999.90/2,797,499.85 = 978,420.70/x
  3. Step 3: Cross multiply
    1,864,999.90x = 2,797,499.85 × 978,420.70
  4. Step 4: Simplify right side
    1,864,999.90x = 2,737,131,761,486.90
  5. Step 5: Solve for x
    x = 2,737,131,761,486.90/1,864,999.90
  6. Step 6: Final answer
    x = 1,467,631.05

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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.