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Finding the Fourth Proportional to 607,690.99, 909,896.23 and 407,580.49

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Solution

The fourth proportional to 607,690.99, 909,896.23 and 407,580.49 is: 610,270.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,690.99 : 909,896.23 = 407,580.49 : x
  2. Step 2: Convert to fraction form
    607,690.99/909,896.23 = 407,580.49/x
  3. Step 3: Cross multiply
    607,690.99x = 909,896.23 × 407,580.49
  4. Step 4: Simplify right side
    607,690.99x = 370,855,951,272.55
  5. Step 5: Solve for x
    x = 370,855,951,272.55/607,690.99
  6. Step 6: Final answer
    x = 610,270.61

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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.