Home / 728,911.40-1,093,367.10-355,663.40

Finding the Fourth Proportional to 728,911.40, 1,093,367.10 and 355,663.40

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Solution

The fourth proportional to 728,911.40, 1,093,367.10 and 355,663.40 is: 533,495.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,911.40 : 1,093,367.10 = 355,663.40 : x
  2. Step 2: Convert to fraction form
    728,911.40/1,093,367.10 = 355,663.40/x
  3. Step 3: Cross multiply
    728,911.40x = 1,093,367.10 × 355,663.40
  4. Step 4: Simplify right side
    728,911.40x = 388,870,660,234.14
  5. Step 5: Solve for x
    x = 388,870,660,234.14/728,911.40
  6. Step 6: Final answer
    x = 533,495.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.