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Finding the Fourth Proportional to 863,999.90, 1,295,999.85 and 804,950.90

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Solution

The fourth proportional to 863,999.90, 1,295,999.85 and 804,950.90 is: 1,207,426.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,999.90 : 1,295,999.85 = 804,950.90 : x
  2. Step 2: Convert to fraction form
    863,999.90/1,295,999.85 = 804,950.90/x
  3. Step 3: Cross multiply
    863,999.90x = 1,295,999.85 × 804,950.90
  4. Step 4: Simplify right side
    863,999.90x = 1,043,216,245,657.37
  5. Step 5: Solve for x
    x = 1,043,216,245,657.37/863,999.90
  6. Step 6: Final answer
    x = 1,207,426.35

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1.5x scale

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.