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Finding the Fourth Proportional to 934,782.40, 1,399,408.80 and 880,100.80

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Solution

The fourth proportional to 934,782.40, 1,399,408.80 and 880,100.80 is: 1,317,548.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,782.40 : 1,399,408.80 = 880,100.80 : x
  2. Step 2: Convert to fraction form
    934,782.40/1,399,408.80 = 880,100.80/x
  3. Step 3: Cross multiply
    934,782.40x = 1,399,408.80 × 880,100.80
  4. Step 4: Simplify right side
    934,782.40x = 1,231,620,804,407.04
  5. Step 5: Solve for x
    x = 1,231,620,804,407.04/934,782.40
  6. Step 6: Final answer
    x = 1,317,548.13

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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.