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Finding the Fourth Proportional to 1,331,292.03, 1,994,905.83 and 790,483.30

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Solution

The fourth proportional to 1,331,292.03, 1,994,905.83 and 790,483.30 is: 1,184,518.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,292.03 : 1,994,905.83 = 790,483.30 : x
  2. Step 2: Convert to fraction form
    1,331,292.03/1,994,905.83 = 790,483.30/x
  3. Step 3: Cross multiply
    1,331,292.03x = 1,994,905.83 × 790,483.30
  4. Step 4: Simplify right side
    1,331,292.03x = 1,576,939,739,735.22
  5. Step 5: Solve for x
    x = 1,576,939,739,735.22/1,331,292.03
  6. Step 6: Final answer
    x = 1,184,518.28

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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.