Home / 3,119,629.60-4,679,610.45-989,880.40

Finding the Fourth Proportional to 3,119,629.60, 4,679,610.45 and 989,880.40

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Solution

The fourth proportional to 3,119,629.60, 4,679,610.45 and 989,880.40 is: 1,484,873.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119,629.60 : 4,679,610.45 = 989,880.40 : x
  2. Step 2: Convert to fraction form
    3,119,629.60/4,679,610.45 = 989,880.40/x
  3. Step 3: Cross multiply
    3,119,629.60x = 4,679,610.45 × 989,880.40
  4. Step 4: Simplify right side
    3,119,629.60x = 4,632,254,664,090.18
  5. Step 5: Solve for x
    x = 4,632,254,664,090.18/3,119,629.60
  6. Step 6: Final answer
    x = 1,484,873.29

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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.