Home / 509,276.11-702,489.63-302,404.27

Finding the Fourth Proportional to 509,276.11, 702,489.63 and 302,404.27

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Solution

The fourth proportional to 509,276.11, 702,489.63 and 302,404.27 is: 417,132.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,276.11 : 702,489.63 = 302,404.27 : x
  2. Step 2: Convert to fraction form
    509,276.11/702,489.63 = 302,404.27/x
  3. Step 3: Cross multiply
    509,276.11x = 702,489.63 × 302,404.27
  4. Step 4: Simplify right side
    509,276.11x = 212,435,863,742.72
  5. Step 5: Solve for x
    x = 212,435,863,742.72/509,276.11
  6. Step 6: Final answer
    x = 417,132.98

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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.