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Finding the Fourth Proportional to 648,537.73, 894,990.93 and 358,168.89

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Solution

The fourth proportional to 648,537.73, 894,990.93 and 358,168.89 is: 494,277.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,537.73 : 894,990.93 = 358,168.89 : x
  2. Step 2: Convert to fraction form
    648,537.73/894,990.93 = 358,168.89/x
  3. Step 3: Cross multiply
    648,537.73x = 894,990.93 × 358,168.89
  4. Step 4: Simplify right side
    648,537.73x = 320,557,907,958.17
  5. Step 5: Solve for x
    x = 320,557,907,958.17/648,537.73
  6. Step 6: Final answer
    x = 494,277.96

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1.5x scale

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.