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Finding the Fourth Proportional to 535,387.58, 738,834.82 and 309,033.08

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Solution

The fourth proportional to 535,387.58, 738,834.82 and 309,033.08 is: 426,465.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,387.58 : 738,834.82 = 309,033.08 : x
  2. Step 2: Convert to fraction form
    535,387.58/738,834.82 = 309,033.08/x
  3. Step 3: Cross multiply
    535,387.58x = 738,834.82 × 309,033.08
  4. Step 4: Simplify right side
    535,387.58x = 228,324,400,035.85
  5. Step 5: Solve for x
    x = 228,324,400,035.85/535,387.58
  6. Step 6: Final answer
    x = 426,465.63

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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.