Home / 1,120,410.10-1,678,610.40-681,430.60

Finding the Fourth Proportional to 1,120,410.10, 1,678,610.40 and 681,430.60

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Solution

The fourth proportional to 1,120,410.10, 1,678,610.40 and 681,430.60 is: 1,020,926.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,410.10 : 1,678,610.40 = 681,430.60 : x
  2. Step 2: Convert to fraction form
    1,120,410.10/1,678,610.40 = 681,430.60/x
  3. Step 3: Cross multiply
    1,120,410.10x = 1,678,610.40 × 681,430.60
  4. Step 4: Simplify right side
    1,120,410.10x = 1,143,856,492,038.24
  5. Step 5: Solve for x
    x = 1,143,856,492,038.24/1,120,410.10
  6. Step 6: Final answer
    x = 1,020,926.62

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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.