Home / 445,146.57-614,582.64-309,137.04

Finding the Fourth Proportional to 445,146.57, 614,582.64 and 309,137.04

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Solution

The fourth proportional to 445,146.57, 614,582.64 and 309,137.04 is: 426,803.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,146.57 : 614,582.64 = 309,137.04 : x
  2. Step 2: Convert to fraction form
    445,146.57/614,582.64 = 309,137.04/x
  3. Step 3: Cross multiply
    445,146.57x = 614,582.64 × 309,137.04
  4. Step 4: Simplify right side
    445,146.57x = 189,990,258,164.99
  5. Step 5: Solve for x
    x = 189,990,258,164.99/445,146.57
  6. Step 6: Final answer
    x = 426,803.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.