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Finding the Fourth Proportional to 675,221.58, 931,822.11 and 369,326.70

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Solution

The fourth proportional to 675,221.58, 931,822.11 and 369,326.70 is: 509,679.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,221.58 : 931,822.11 = 369,326.70 : x
  2. Step 2: Convert to fraction form
    675,221.58/931,822.11 = 369,326.70/x
  3. Step 3: Cross multiply
    675,221.58x = 931,822.11 × 369,326.70
  4. Step 4: Simplify right side
    675,221.58x = 344,146,784,873.34
  5. Step 5: Solve for x
    x = 344,146,784,873.34/675,221.58
  6. Step 6: Final answer
    x = 509,679.78

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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.