Home / 1,329,028.40-1,994,125.80-618,690.80

Finding the Fourth Proportional to 1,329,028.40, 1,994,125.80 and 618,690.80

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Solution

The fourth proportional to 1,329,028.40, 1,994,125.80 and 618,690.80 is: 928,307.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,028.40 : 1,994,125.80 = 618,690.80 : x
  2. Step 2: Convert to fraction form
    1,329,028.40/1,994,125.80 = 618,690.80/x
  3. Step 3: Cross multiply
    1,329,028.40x = 1,994,125.80 × 618,690.80
  4. Step 4: Simplify right side
    1,329,028.40x = 1,233,747,286,502.64
  5. Step 5: Solve for x
    x = 1,233,747,286,502.64/1,329,028.40
  6. Step 6: Final answer
    x = 928,307.69

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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.