Home / 1,217,850.78-1,827,181.88-408,315.32

Finding the Fourth Proportional to 1,217,850.78, 1,827,181.88 and 408,315.32

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Solution

The fourth proportional to 1,217,850.78, 1,827,181.88 and 408,315.32 is: 612,609.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,850.78 : 1,827,181.88 = 408,315.32 : x
  2. Step 2: Convert to fraction form
    1,217,850.78/1,827,181.88 = 408,315.32/x
  3. Step 3: Cross multiply
    1,217,850.78x = 1,827,181.88 × 408,315.32
  4. Step 4: Simplify right side
    1,217,850.78x = 746,066,354,030.40
  5. Step 5: Solve for x
    x = 746,066,354,030.40/1,217,850.78
  6. Step 6: Final answer
    x = 612,609.00

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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.