Home / 1,008,023.10-1,515,145.05-989,360.70

Finding the Fourth Proportional to 1,008,023.10, 1,515,145.05 and 989,360.70

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Solution

The fourth proportional to 1,008,023.10, 1,515,145.05 and 989,360.70 is: 1,487,093.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,023.10 : 1,515,145.05 = 989,360.70 : x
  2. Step 2: Convert to fraction form
    1,008,023.10/1,515,145.05 = 989,360.70/x
  3. Step 3: Cross multiply
    1,008,023.10x = 1,515,145.05 × 989,360.70
  4. Step 4: Simplify right side
    1,008,023.10x = 1,499,024,967,269.54
  5. Step 5: Solve for x
    x = 1,499,024,967,269.54/1,008,023.10
  6. Step 6: Final answer
    x = 1,487,093.86

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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.