Home / 1,289,346.77-1,934,084.39-490,690.21

Finding the Fourth Proportional to 1,289,346.77, 1,934,084.39 and 490,690.21

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Solution

The fourth proportional to 1,289,346.77, 1,934,084.39 and 490,690.21 is: 736,059.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,346.77 : 1,934,084.39 = 490,690.21 : x
  2. Step 2: Convert to fraction form
    1,289,346.77/1,934,084.39 = 490,690.21/x
  3. Step 3: Cross multiply
    1,289,346.77x = 1,934,084.39 × 490,690.21
  4. Step 4: Simplify right side
    1,289,346.77x = 949,036,274,584.70
  5. Step 5: Solve for x
    x = 949,036,274,584.70/1,289,346.77
  6. Step 6: Final answer
    x = 736,059.76

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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.