Home / 585,906.40-878,465.04-211,880.80

Finding the Fourth Proportional to 585,906.40, 878,465.04 and 211,880.80

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Solution

The fourth proportional to 585,906.40, 878,465.04 and 211,880.80 is: 317,678.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,906.40 : 878,465.04 = 211,880.80 : x
  2. Step 2: Convert to fraction form
    585,906.40/878,465.04 = 211,880.80/x
  3. Step 3: Cross multiply
    585,906.40x = 878,465.04 × 211,880.80
  4. Step 4: Simplify right side
    585,906.40x = 186,129,875,447.23
  5. Step 5: Solve for x
    x = 186,129,875,447.23/585,906.40
  6. Step 6: Final answer
    x = 317,678.52

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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.