Home / 1,289,898.40-1,933,465.20-490,871.20

Finding the Fourth Proportional to 1,289,898.40, 1,933,465.20 and 490,871.20

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Solution

The fourth proportional to 1,289,898.40, 1,933,465.20 and 490,871.20 is: 735,780.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,898.40 : 1,933,465.20 = 490,871.20 : x
  2. Step 2: Convert to fraction form
    1,289,898.40/1,933,465.20 = 490,871.20/x
  3. Step 3: Cross multiply
    1,289,898.40x = 1,933,465.20 × 490,871.20
  4. Step 4: Simplify right side
    1,289,898.40x = 949,082,382,882.24
  5. Step 5: Solve for x
    x = 949,082,382,882.24/1,289,898.40
  6. Step 6: Final answer
    x = 735,780.73

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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.