Home / 861,024.06-1,290,698.73-411,628.50

Finding the Fourth Proportional to 861,024.06, 1,290,698.73 and 411,628.50

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Solution

The fourth proportional to 861,024.06, 1,290,698.73 and 411,628.50 is: 617,042.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,024.06 : 1,290,698.73 = 411,628.50 : x
  2. Step 2: Convert to fraction form
    861,024.06/1,290,698.73 = 411,628.50/x
  3. Step 3: Cross multiply
    861,024.06x = 1,290,698.73 × 411,628.50
  4. Step 4: Simplify right side
    861,024.06x = 531,288,382,181.81
  5. Step 5: Solve for x
    x = 531,288,382,181.81/861,024.06
  6. Step 6: Final answer
    x = 617,042.43

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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.