Home / 1,117,370.25-1,676,070.75-318,651.87

Finding the Fourth Proportional to 1,117,370.25, 1,676,070.75 and 318,651.87

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Solution

The fourth proportional to 1,117,370.25, 1,676,070.75 and 318,651.87 is: 477,982.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,370.25 : 1,676,070.75 = 318,651.87 : x
  2. Step 2: Convert to fraction form
    1,117,370.25/1,676,070.75 = 318,651.87/x
  3. Step 3: Cross multiply
    1,117,370.25x = 1,676,070.75 × 318,651.87
  4. Step 4: Simplify right side
    1,117,370.25x = 534,083,078,739.80
  5. Step 5: Solve for x
    x = 534,083,078,739.80/1,117,370.25
  6. Step 6: Final answer
    x = 477,982.19

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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.