Home / 1,389,622.19-2,084,601.39-490,880.00

Finding the Fourth Proportional to 1,389,622.19, 2,084,601.39 and 490,880.00

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Solution

The fourth proportional to 1,389,622.19, 2,084,601.39 and 490,880.00 is: 736,379.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,622.19 : 2,084,601.39 = 490,880.00 : x
  2. Step 2: Convert to fraction form
    1,389,622.19/2,084,601.39 = 490,880.00/x
  3. Step 3: Cross multiply
    1,389,622.19x = 2,084,601.39 × 490,880.00
  4. Step 4: Simplify right side
    1,389,622.19x = 1,023,289,119,900.19
  5. Step 5: Solve for x
    x = 1,023,289,119,900.19/1,389,622.19
  6. Step 6: Final answer
    x = 736,379.38

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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.