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Finding the Fourth Proportional to 555,065.67, 766,009.18 and 340,164.21

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Solution

The fourth proportional to 555,065.67, 766,009.18 and 340,164.21 is: 469,437.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,065.67 : 766,009.18 = 340,164.21 : x
  2. Step 2: Convert to fraction form
    555,065.67/766,009.18 = 340,164.21/x
  3. Step 3: Cross multiply
    555,065.67x = 766,009.18 × 340,164.21
  4. Step 4: Simplify right side
    555,065.67x = 260,568,907,567.45
  5. Step 5: Solve for x
    x = 260,568,907,567.45/555,065.67
  6. Step 6: Final answer
    x = 469,437.98

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.