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Finding the Fourth Proportional to 878,950.08, 1,212,975 and 497,034

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Solution

The fourth proportional to 878,950.08, 1,212,975 and 497,034 is: 685,920.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,950.08 : 1,212,975 = 497,034 : x
  2. Step 2: Convert to fraction form
    878,950.08/1,212,975 = 497,034/x
  3. Step 3: Cross multiply
    878,950.08x = 1,212,975 × 497,034
  4. Step 4: Simplify right side
    878,950.08x = 602,889,816,150
  5. Step 5: Solve for x
    x = 602,889,816,150/878,950.08
  6. Step 6: Final answer
    x = 685,920.43

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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.