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Finding the Fourth Proportional to 1,939,402.89, 2,904,495.60 and 976,830.38

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Solution

The fourth proportional to 1,939,402.89, 2,904,495.60 and 976,830.38 is: 1,462,924.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,402.89 : 2,904,495.60 = 976,830.38 : x
  2. Step 2: Convert to fraction form
    1,939,402.89/2,904,495.60 = 976,830.38/x
  3. Step 3: Cross multiply
    1,939,402.89x = 2,904,495.60 × 976,830.38
  4. Step 4: Simplify right side
    1,939,402.89x = 2,837,199,540,656.33
  5. Step 5: Solve for x
    x = 2,837,199,540,656.33/1,939,402.89
  6. Step 6: Final answer
    x = 1,462,924.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.