Home / 493,129.08-738,696.78-380,419.47

Finding the Fourth Proportional to 493,129.08, 738,696.78 and 380,419.47

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Solution

The fourth proportional to 493,129.08, 738,696.78 and 380,419.47 is: 569,860.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,129.08 : 738,696.78 = 380,419.47 : x
  2. Step 2: Convert to fraction form
    493,129.08/738,696.78 = 380,419.47/x
  3. Step 3: Cross multiply
    493,129.08x = 738,696.78 × 380,419.47
  4. Step 4: Simplify right side
    493,129.08x = 281,014,637,538.31
  5. Step 5: Solve for x
    x = 281,014,637,538.31/493,129.08
  6. Step 6: Final answer
    x = 569,860.20

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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.