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Finding the Fourth Proportional to 1,345,939, 1,857,683.25 and 773,294.92

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Solution

The fourth proportional to 1,345,939, 1,857,683.25 and 773,294.92 is: 1,067,312.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,939 : 1,857,683.25 = 773,294.92 : x
  2. Step 2: Convert to fraction form
    1,345,939/1,857,683.25 = 773,294.92/x
  3. Step 3: Cross multiply
    1,345,939x = 1,857,683.25 × 773,294.92
  4. Step 4: Simplify right side
    1,345,939x = 1,436,537,020,194.09
  5. Step 5: Solve for x
    x = 1,436,537,020,194.09/1,345,939
  6. Step 6: Final answer
    x = 1,067,312.13

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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.