Home / 681,386.58-1,020,769.83-380,955.96

Finding the Fourth Proportional to 681,386.58, 1,020,769.83 and 380,955.96

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Solution

The fourth proportional to 681,386.58, 1,020,769.83 and 380,955.96 is: 570,701.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,386.58 : 1,020,769.83 = 380,955.96 : x
  2. Step 2: Convert to fraction form
    681,386.58/1,020,769.83 = 380,955.96/x
  3. Step 3: Cross multiply
    681,386.58x = 1,020,769.83 × 380,955.96
  4. Step 4: Simplify right side
    681,386.58x = 388,868,350,526.69
  5. Step 5: Solve for x
    x = 388,868,350,526.69/681,386.58
  6. Step 6: Final answer
    x = 570,701.51

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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.