Home / 1,286,150.45-1,929,226.37-326,678.00

Finding the Fourth Proportional to 1,286,150.45, 1,929,226.37 and 326,678.00

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Solution

The fourth proportional to 1,286,150.45, 1,929,226.37 and 326,678.00 is: 490,017.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,150.45 : 1,929,226.37 = 326,678.00 : x
  2. Step 2: Convert to fraction form
    1,286,150.45/1,929,226.37 = 326,678.00/x
  3. Step 3: Cross multiply
    1,286,150.45x = 1,929,226.37 × 326,678.00
  4. Step 4: Simplify right side
    1,286,150.45x = 630,235,800,819.34
  5. Step 5: Solve for x
    x = 630,235,800,819.34/1,286,150.45
  6. Step 6: Final answer
    x = 490,017.17

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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.