Home / 861,004.20-1,291,506.30-623,231.40

Finding the Fourth Proportional to 861,004.20, 1,291,506.30 and 623,231.40

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Solution

The fourth proportional to 861,004.20, 1,291,506.30 and 623,231.40 is: 934,847.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,004.20 : 1,291,506.30 = 623,231.40 : x
  2. Step 2: Convert to fraction form
    861,004.20/1,291,506.30 = 623,231.40/x
  3. Step 3: Cross multiply
    861,004.20x = 1,291,506.30 × 623,231.40
  4. Step 4: Simplify right side
    861,004.20x = 804,907,279,457.82
  5. Step 5: Solve for x
    x = 804,907,279,457.82/861,004.20
  6. Step 6: Final answer
    x = 934,847.10

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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.