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Finding the Fourth Proportional to 804,994.40, 1,207,637.40 and 404,627.60

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Solution

The fourth proportional to 804,994.40, 1,207,637.40 and 404,627.60 is: 607,014.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,994.40 : 1,207,637.40 = 404,627.60 : x
  2. Step 2: Convert to fraction form
    804,994.40/1,207,637.40 = 404,627.60/x
  3. Step 3: Cross multiply
    804,994.40x = 1,207,637.40 × 404,627.60
  4. Step 4: Simplify right side
    804,994.40x = 488,643,422,832.24
  5. Step 5: Solve for x
    x = 488,643,422,832.24/804,994.40
  6. Step 6: Final answer
    x = 607,014.69

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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.