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Finding the Fourth Proportional to 675,178.96, 931,709.28 and 369,194.62

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Solution

The fourth proportional to 675,178.96, 931,709.28 and 369,194.62 is: 509,467.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,178.96 : 931,709.28 = 369,194.62 : x
  2. Step 2: Convert to fraction form
    675,178.96/931,709.28 = 369,194.62/x
  3. Step 3: Cross multiply
    675,178.96x = 931,709.28 × 369,194.62
  4. Step 4: Simplify right side
    675,178.96x = 343,982,053,580.07
  5. Step 5: Solve for x
    x = 343,982,053,580.07/675,178.96
  6. Step 6: Final answer
    x = 509,467.97

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1.5x scale

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.