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Finding the Fourth Proportional to 1,372,953.51, 1,895,429.88 and 938,024.82

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Solution

The fourth proportional to 1,372,953.51, 1,895,429.88 and 938,024.82 is: 1,294,989.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372,953.51 : 1,895,429.88 = 938,024.82 : x
  2. Step 2: Convert to fraction form
    1,372,953.51/1,895,429.88 = 938,024.82/x
  3. Step 3: Cross multiply
    1,372,953.51x = 1,895,429.88 × 938,024.82
  4. Step 4: Simplify right side
    1,372,953.51x = 1,777,960,272,009.62
  5. Step 5: Solve for x
    x = 1,777,960,272,009.62/1,372,953.51
  6. Step 6: Final answer
    x = 1,294,989.42

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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.