Home / 674,647.20-1,010,804.40-318,895.20

Finding the Fourth Proportional to 674,647.20, 1,010,804.40 and 318,895.20

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Solution

The fourth proportional to 674,647.20, 1,010,804.40 and 318,895.20 is: 477,791.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,647.20 : 1,010,804.40 = 318,895.20 : x
  2. Step 2: Convert to fraction form
    674,647.20/1,010,804.40 = 318,895.20/x
  3. Step 3: Cross multiply
    674,647.20x = 1,010,804.40 × 318,895.20
  4. Step 4: Simplify right side
    674,647.20x = 322,340,671,298.88
  5. Step 5: Solve for x
    x = 322,340,671,298.88/674,647.20
  6. Step 6: Final answer
    x = 477,791.46

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1.5x scale

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.