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Finding the Fourth Proportional to 490,303.73, 676,582.77 and 275,479.58

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Solution

The fourth proportional to 490,303.73, 676,582.77 and 275,479.58 is: 380,141.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,303.73 : 676,582.77 = 275,479.58 : x
  2. Step 2: Convert to fraction form
    490,303.73/676,582.77 = 275,479.58/x
  3. Step 3: Cross multiply
    490,303.73x = 676,582.77 × 275,479.58
  4. Step 4: Simplify right side
    490,303.73x = 186,384,740,039.34
  5. Step 5: Solve for x
    x = 186,384,740,039.34/490,303.73
  6. Step 6: Final answer
    x = 380,141.39

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1.5x scale

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.