Home / 1,008,023.60-1,515,145.80-989,361.20

Finding the Fourth Proportional to 1,008,023.60, 1,515,145.80 and 989,361.20

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Solution

The fourth proportional to 1,008,023.60, 1,515,145.80 and 989,361.20 is: 1,487,094.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,023.60 : 1,515,145.80 = 989,361.20 : x
  2. Step 2: Convert to fraction form
    1,008,023.60/1,515,145.80 = 989,361.20/x
  3. Step 3: Cross multiply
    1,008,023.60x = 1,515,145.80 × 989,361.20
  4. Step 4: Simplify right side
    1,008,023.60x = 1,499,026,466,862.96
  5. Step 5: Solve for x
    x = 1,499,026,466,862.96/1,008,023.60
  6. Step 6: Final answer
    x = 1,487,094.61

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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.