Home / 718,790.55-1,078,071.51-238,978.48

Finding the Fourth Proportional to 718,790.55, 1,078,071.51 and 238,978.48

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Solution

The fourth proportional to 718,790.55, 1,078,071.51 and 238,978.48 is: 358,429.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,790.55 : 1,078,071.51 = 238,978.48 : x
  2. Step 2: Convert to fraction form
    718,790.55/1,078,071.51 = 238,978.48/x
  3. Step 3: Cross multiply
    718,790.55x = 1,078,071.51 × 238,978.48
  4. Step 4: Simplify right side
    718,790.55x = 257,635,886,074.54
  5. Step 5: Solve for x
    x = 257,635,886,074.54/718,790.55
  6. Step 6: Final answer
    x = 358,429.71

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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.