Home / 648,090.57-894,151.31-418,783.16

Finding the Fourth Proportional to 648,090.57, 894,151.31 and 418,783.16

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Solution

The fourth proportional to 648,090.57, 894,151.31 and 418,783.16 is: 577,782.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,090.57 : 894,151.31 = 418,783.16 : x
  2. Step 2: Convert to fraction form
    648,090.57/894,151.31 = 418,783.16/x
  3. Step 3: Cross multiply
    648,090.57x = 894,151.31 × 418,783.16
  4. Step 4: Simplify right side
    648,090.57x = 374,455,511,261.40
  5. Step 5: Solve for x
    x = 374,455,511,261.40/648,090.57
  6. Step 6: Final answer
    x = 577,782.69

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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.