Home / 3,989,223.80-5,983,835.40-997,407.80

Finding the Fourth Proportional to 3,989,223.80, 5,983,835.40 and 997,407.80

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Solution

The fourth proportional to 3,989,223.80, 5,983,835.40 and 997,407.80 is: 1,496,111.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989,223.80 : 5,983,835.40 = 997,407.80 : x
  2. Step 2: Convert to fraction form
    3,989,223.80/5,983,835.40 = 997,407.80/x
  3. Step 3: Cross multiply
    3,989,223.80x = 5,983,835.40 × 997,407.80
  4. Step 4: Simplify right side
    3,989,223.80x = 5,968,324,101,876.12
  5. Step 5: Solve for x
    x = 5,968,324,101,876.12/3,989,223.80
  6. Step 6: Final answer
    x = 1,496,111.62

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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.