Home / 2,079,285.19-3,119,223.37-640,088.60

Finding the Fourth Proportional to 2,079,285.19, 3,119,223.37 and 640,088.60

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Solution

The fourth proportional to 2,079,285.19, 3,119,223.37 and 640,088.60 is: 960,223.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079,285.19 : 3,119,223.37 = 640,088.60 : x
  2. Step 2: Convert to fraction form
    2,079,285.19/3,119,223.37 = 640,088.60/x
  3. Step 3: Cross multiply
    2,079,285.19x = 3,119,223.37 × 640,088.60
  4. Step 4: Simplify right side
    2,079,285.19x = 1,996,579,319,990.58
  5. Step 5: Solve for x
    x = 1,996,579,319,990.58/2,079,285.19
  6. Step 6: Final answer
    x = 960,223.89

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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.