Home / 648,534.48-894,986.43-358,165.63

Finding the Fourth Proportional to 648,534.48, 894,986.43 and 358,165.63

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Solution

The fourth proportional to 648,534.48, 894,986.43 and 358,165.63 is: 494,273.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,534.48 : 894,986.43 = 358,165.63 : x
  2. Step 2: Convert to fraction form
    648,534.48/894,986.43 = 358,165.63/x
  3. Step 3: Cross multiply
    648,534.48x = 894,986.43 × 358,165.63
  4. Step 4: Simplify right side
    648,534.48x = 320,553,374,067.47
  5. Step 5: Solve for x
    x = 320,553,374,067.47/648,534.48
  6. Step 6: Final answer
    x = 494,273.45

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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.