Home / 915,854.31-1,372,811.88-308,064.03

Finding the Fourth Proportional to 915,854.31, 1,372,811.88 and 308,064.03

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Solution

The fourth proportional to 915,854.31, 1,372,811.88 and 308,064.03 is: 461,769.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,854.31 : 1,372,811.88 = 308,064.03 : x
  2. Step 2: Convert to fraction form
    915,854.31/1,372,811.88 = 308,064.03/x
  3. Step 3: Cross multiply
    915,854.31x = 1,372,811.88 × 308,064.03
  4. Step 4: Simplify right side
    915,854.31x = 422,913,960,184.68
  5. Step 5: Solve for x
    x = 422,913,960,184.68/915,854.31
  6. Step 6: Final answer
    x = 461,769.91

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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.