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Finding the Fourth Proportional to 675,110.76, 931,651.30 and 388,526.44

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Solution

The fourth proportional to 675,110.76, 931,651.30 and 388,526.44 is: 536,165.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,110.76 : 931,651.30 = 388,526.44 : x
  2. Step 2: Convert to fraction form
    675,110.76/931,651.30 = 388,526.44/x
  3. Step 3: Cross multiply
    675,110.76x = 931,651.30 × 388,526.44
  4. Step 4: Simplify right side
    675,110.76x = 361,971,162,910.37
  5. Step 5: Solve for x
    x = 361,971,162,910.37/675,110.76
  6. Step 6: Final answer
    x = 536,165.60

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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.