Home / 738,786.17-1,108,677.47-289,450.68

Finding the Fourth Proportional to 738,786.17, 1,108,677.47 and 289,450.68

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Solution

The fourth proportional to 738,786.17, 1,108,677.47 and 289,450.68 is: 434,371.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,786.17 : 1,108,677.47 = 289,450.68 : x
  2. Step 2: Convert to fraction form
    738,786.17/1,108,677.47 = 289,450.68/x
  3. Step 3: Cross multiply
    738,786.17x = 1,108,677.47 × 289,450.68
  4. Step 4: Simplify right side
    738,786.17x = 320,907,446,144.93
  5. Step 5: Solve for x
    x = 320,907,446,144.93/738,786.17
  6. Step 6: Final answer
    x = 434,371.22

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Double scale
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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.