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Finding the Fourth Proportional to 1,411,635, 1,948,056.30 and 775,731

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Solution

The fourth proportional to 1,411,635, 1,948,056.30 and 775,731 is: 1,070,508.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411,635 : 1,948,056.30 = 775,731 : x
  2. Step 2: Convert to fraction form
    1,411,635/1,948,056.30 = 775,731/x
  3. Step 3: Cross multiply
    1,411,635x = 1,948,056.30 × 775,731
  4. Step 4: Simplify right side
    1,411,635x = 1,511,167,661,655.30
  5. Step 5: Solve for x
    x = 1,511,167,661,655.30/1,411,635
  6. Step 6: Final answer
    x = 1,070,508.78

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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.