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Finding the Fourth Proportional to 903,288.51, 1,355,457.51 and 404,652.51

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Solution

The fourth proportional to 903,288.51, 1,355,457.51 and 404,652.51 is: 607,213.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,288.51 : 1,355,457.51 = 404,652.51 : x
  2. Step 2: Convert to fraction form
    903,288.51/1,355,457.51 = 404,652.51/x
  3. Step 3: Cross multiply
    903,288.51x = 1,355,457.51 × 404,652.51
  4. Step 4: Simplify right side
    903,288.51x = 548,489,283,619.85
  5. Step 5: Solve for x
    x = 548,489,283,619.85/903,288.51
  6. Step 6: Final answer
    x = 607,213.84

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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.