Home / 2,390,493-3,298,880.34-1,317,405

Finding the Fourth Proportional to 2,390,493, 3,298,880.34 and 1,317,405

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Solution

The fourth proportional to 2,390,493, 3,298,880.34 and 1,317,405 is: 1,818,018.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390,493 : 3,298,880.34 = 1,317,405 : x
  2. Step 2: Convert to fraction form
    2,390,493/3,298,880.34 = 1,317,405/x
  3. Step 3: Cross multiply
    2,390,493x = 3,298,880.34 × 1,317,405
  4. Step 4: Simplify right side
    2,390,493x = 4,345,961,454,317.70
  5. Step 5: Solve for x
    x = 4,345,961,454,317.70/2,390,493
  6. Step 6: Final answer
    x = 1,818,018.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.