Home / 744,820-1,027,842.96-405,282.40

Finding the Fourth Proportional to 744,820, 1,027,842.96 and 405,282.40

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Solution

The fourth proportional to 744,820, 1,027,842.96 and 405,282.40 is: 559,285.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,820 : 1,027,842.96 = 405,282.40 : x
  2. Step 2: Convert to fraction form
    744,820/1,027,842.96 = 405,282.40/x
  3. Step 3: Cross multiply
    744,820x = 1,027,842.96 × 405,282.40
  4. Step 4: Simplify right side
    744,820x = 416,566,661,651.90
  5. Step 5: Solve for x
    x = 416,566,661,651.90/744,820
  6. Step 6: Final answer
    x = 559,285.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.