Home / 738,969.78-1,107,644.93-289,196.33

Finding the Fourth Proportional to 738,969.78, 1,107,644.93 and 289,196.33

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Solution

The fourth proportional to 738,969.78, 1,107,644.93 and 289,196.33 is: 433,477.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,969.78 : 1,107,644.93 = 289,196.33 : x
  2. Step 2: Convert to fraction form
    738,969.78/1,107,644.93 = 289,196.33/x
  3. Step 3: Cross multiply
    738,969.78x = 1,107,644.93 × 289,196.33
  4. Step 4: Simplify right side
    738,969.78x = 320,326,842,799.39
  5. Step 5: Solve for x
    x = 320,326,842,799.39/738,969.78
  6. Step 6: Final answer
    x = 433,477.59

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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.