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Finding the Fourth Proportional to 543,842.80, 750,489.60 and 302,126

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Solution

The fourth proportional to 543,842.80, 750,489.60 and 302,126 is: 416,926.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,842.80 : 750,489.60 = 302,126 : x
  2. Step 2: Convert to fraction form
    543,842.80/750,489.60 = 302,126/x
  3. Step 3: Cross multiply
    543,842.80x = 750,489.60 × 302,126
  4. Step 4: Simplify right side
    543,842.80x = 226,742,420,889.60
  5. Step 5: Solve for x
    x = 226,742,420,889.60/543,842.80
  6. Step 6: Final answer
    x = 416,926.40

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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.