Home / 727,606.40-1,091,409.66-278,465.04

Finding the Fourth Proportional to 727,606.40, 1,091,409.66 and 278,465.04

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Solution

The fourth proportional to 727,606.40, 1,091,409.66 and 278,465.04 is: 417,697.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,606.40 : 1,091,409.66 = 278,465.04 : x
  2. Step 2: Convert to fraction form
    727,606.40/1,091,409.66 = 278,465.04/x
  3. Step 3: Cross multiply
    727,606.40x = 1,091,409.66 × 278,465.04
  4. Step 4: Simplify right side
    727,606.40x = 303,919,434,628.29
  5. Step 5: Solve for x
    x = 303,919,434,628.29/727,606.40
  6. Step 6: Final answer
    x = 417,697.59

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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.