Home / 785,435.67-1,178,129.96-216,851.48

Finding the Fourth Proportional to 785,435.67, 1,178,129.96 and 216,851.48

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Solution

The fourth proportional to 785,435.67, 1,178,129.96 and 216,851.48 is: 325,270.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,435.67 : 1,178,129.96 = 216,851.48 : x
  2. Step 2: Convert to fraction form
    785,435.67/1,178,129.96 = 216,851.48/x
  3. Step 3: Cross multiply
    785,435.67x = 1,178,129.96 × 216,851.48
  4. Step 4: Simplify right side
    785,435.67x = 255,479,218,483.43
  5. Step 5: Solve for x
    x = 255,479,218,483.43/785,435.67
  6. Step 6: Final answer
    x = 325,270.71

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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.