Home / 931,873.19-1,397,957.71-300,639.38

Finding the Fourth Proportional to 931,873.19, 1,397,957.71 and 300,639.38

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Solution

The fourth proportional to 931,873.19, 1,397,957.71 and 300,639.38 is: 451,006.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,873.19 : 1,397,957.71 = 300,639.38 : x
  2. Step 2: Convert to fraction form
    931,873.19/1,397,957.71 = 300,639.38/x
  3. Step 3: Cross multiply
    931,873.19x = 1,397,957.71 × 300,639.38
  4. Step 4: Simplify right side
    931,873.19x = 420,281,139,200.62
  5. Step 5: Solve for x
    x = 420,281,139,200.62/931,873.19
  6. Step 6: Final answer
    x = 451,006.79

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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.