Home / 738,755.22-1,108,762.29-289,788.42

Finding the Fourth Proportional to 738,755.22, 1,108,762.29 and 289,788.42

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Solution

The fourth proportional to 738,755.22, 1,108,762.29 and 289,788.42 is: 434,929.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,755.22 : 1,108,762.29 = 289,788.42 : x
  2. Step 2: Convert to fraction form
    738,755.22/1,108,762.29 = 289,788.42/x
  3. Step 3: Cross multiply
    738,755.22x = 1,108,762.29 × 289,788.42
  4. Step 4: Simplify right side
    738,755.22x = 321,306,472,174.68
  5. Step 5: Solve for x
    x = 321,306,472,174.68/738,755.22
  6. Step 6: Final answer
    x = 434,929.55

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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.