Home / 778,274.34-1,167,446.64-238,491.78

Finding the Fourth Proportional to 778,274.34, 1,167,446.64 and 238,491.78

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Solution

The fourth proportional to 778,274.34, 1,167,446.64 and 238,491.78 is: 357,748.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,274.34 : 1,167,446.64 = 238,491.78 : x
  2. Step 2: Convert to fraction form
    778,274.34/1,167,446.64 = 238,491.78/x
  3. Step 3: Cross multiply
    778,274.34x = 1,167,446.64 × 238,491.78
  4. Step 4: Simplify right side
    778,274.34x = 278,426,427,228.62
  5. Step 5: Solve for x
    x = 278,426,427,228.62/778,274.34
  6. Step 6: Final answer
    x = 357,748.44

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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.