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Finding the Fourth Proportional to 675,248.64, 931,812.48 and 369,310.56

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Solution

The fourth proportional to 675,248.64, 931,812.48 and 369,310.56 is: 509,631.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,248.64 : 931,812.48 = 369,310.56 : x
  2. Step 2: Convert to fraction form
    675,248.64/931,812.48 = 369,310.56/x
  3. Step 3: Cross multiply
    675,248.64x = 931,812.48 × 369,310.56
  4. Step 4: Simplify right side
    675,248.64x = 344,128,188,803.79
  5. Step 5: Solve for x
    x = 344,128,188,803.79/675,248.64
  6. Step 6: Final answer
    x = 509,631.81

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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.