Home / 823,419.19-1,235,482.03-318,334.89

Finding the Fourth Proportional to 823,419.19, 1,235,482.03 and 318,334.89

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Solution

The fourth proportional to 823,419.19, 1,235,482.03 and 318,334.89 is: 477,638.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,419.19 : 1,235,482.03 = 318,334.89 : x
  2. Step 2: Convert to fraction form
    823,419.19/1,235,482.03 = 318,334.89/x
  3. Step 3: Cross multiply
    823,419.19x = 1,235,482.03 × 318,334.89
  4. Step 4: Simplify right side
    823,419.19x = 393,297,041,148.00
  5. Step 5: Solve for x
    x = 393,297,041,148.00/823,419.19
  6. Step 6: Final answer
    x = 477,638.91

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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.