Home / 920,567-1,380,899.71-289,530.02

Finding the Fourth Proportional to 920,567, 1,380,899.71 and 289,530.02

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Solution

The fourth proportional to 920,567, 1,380,899.71 and 289,530.02 is: 434,310.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,567 : 1,380,899.71 = 289,530.02 : x
  2. Step 2: Convert to fraction form
    920,567/1,380,899.71 = 289,530.02/x
  3. Step 3: Cross multiply
    920,567x = 1,380,899.71 × 289,530.02
  4. Step 4: Simplify right side
    920,567x = 399,811,920,654.29
  5. Step 5: Solve for x
    x = 399,811,920,654.29/920,567
  6. Step 6: Final answer
    x = 434,310.51

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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.