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Finding the Fourth Proportional to 648,048.60, 894,265.11 and 357,662.79

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Solution

The fourth proportional to 648,048.60, 894,265.11 and 357,662.79 is: 493,551.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,048.60 : 894,265.11 = 357,662.79 : x
  2. Step 2: Convert to fraction form
    648,048.60/894,265.11 = 357,662.79/x
  3. Step 3: Cross multiply
    648,048.60x = 894,265.11 × 357,662.79
  4. Step 4: Simplify right side
    648,048.60x = 319,845,354,242.26
  5. Step 5: Solve for x
    x = 319,845,354,242.26/648,048.60
  6. Step 6: Final answer
    x = 493,551.49

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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.