Home / 1,286,596.80-1,929,895.20-340,063.20

Finding the Fourth Proportional to 1,286,596.80, 1,929,895.20 and 340,063.20

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Solution

The fourth proportional to 1,286,596.80, 1,929,895.20 and 340,063.20 is: 510,094.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,596.80 : 1,929,895.20 = 340,063.20 : x
  2. Step 2: Convert to fraction form
    1,286,596.80/1,929,895.20 = 340,063.20/x
  3. Step 3: Cross multiply
    1,286,596.80x = 1,929,895.20 × 340,063.20
  4. Step 4: Simplify right side
    1,286,596.80x = 656,286,337,376.64
  5. Step 5: Solve for x
    x = 656,286,337,376.64/1,286,596.80
  6. Step 6: Final answer
    x = 510,094.80

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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.