Home / 918,632.91-1,377,860.32-278,942.27

Finding the Fourth Proportional to 918,632.91, 1,377,860.32 and 278,942.27

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Solution

The fourth proportional to 918,632.91, 1,377,860.32 and 278,942.27 is: 418,386.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,632.91 : 1,377,860.32 = 278,942.27 : x
  2. Step 2: Convert to fraction form
    918,632.91/1,377,860.32 = 278,942.27/x
  3. Step 3: Cross multiply
    918,632.91x = 1,377,860.32 × 278,942.27
  4. Step 4: Simplify right side
    918,632.91x = 384,343,485,403.73
  5. Step 5: Solve for x
    x = 384,343,485,403.73/918,632.91
  6. Step 6: Final answer
    x = 418,386.37

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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.