Home / 738,785.67-1,108,676.72-289,450.18

Finding the Fourth Proportional to 738,785.67, 1,108,676.72 and 289,450.18

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Solution

The fourth proportional to 738,785.67, 1,108,676.72 and 289,450.18 is: 434,370.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,785.67 : 1,108,676.72 = 289,450.18 : x
  2. Step 2: Convert to fraction form
    738,785.67/1,108,676.72 = 289,450.18/x
  3. Step 3: Cross multiply
    738,785.67x = 1,108,676.72 × 289,450.18
  4. Step 4: Simplify right side
    738,785.67x = 320,906,676,165.81
  5. Step 5: Solve for x
    x = 320,906,676,165.81/738,785.67
  6. Step 6: Final answer
    x = 434,370.47

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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.