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Finding the Fourth Proportional to 1,411,879.11, 1,948,408.19 and 767,299.29

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Solution

The fourth proportional to 1,411,879.11, 1,948,408.19 and 767,299.29 is: 1,058,881.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411,879.11 : 1,948,408.19 = 767,299.29 : x
  2. Step 2: Convert to fraction form
    1,411,879.11/1,948,408.19 = 767,299.29/x
  3. Step 3: Cross multiply
    1,411,879.11x = 1,948,408.19 × 767,299.29
  4. Step 4: Simplify right side
    1,411,879.11x = 1,495,012,220,817.19
  5. Step 5: Solve for x
    x = 1,495,012,220,817.19/1,411,879.11
  6. Step 6: Final answer
    x = 1,058,881.18

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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.