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Finding the Fourth Proportional to 540,379.46, 745,729.18 and 295,371.21

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Solution

The fourth proportional to 540,379.46, 745,729.18 and 295,371.21 is: 407,615.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,379.46 : 745,729.18 = 295,371.21 : x
  2. Step 2: Convert to fraction form
    540,379.46/745,729.18 = 295,371.21/x
  3. Step 3: Cross multiply
    540,379.46x = 745,729.18 × 295,371.21
  4. Step 4: Simplify right side
    540,379.46x = 220,266,933,948.43
  5. Step 5: Solve for x
    x = 220,266,933,948.43/540,379.46
  6. Step 6: Final answer
    x = 407,615.30

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Why These Related Problems?

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