Home / 855,359.39-1,179,930.33-549,483.90

Finding the Fourth Proportional to 855,359.39, 1,179,930.33 and 549,483.90

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Solution

The fourth proportional to 855,359.39, 1,179,930.33 and 549,483.90 is: 757,988.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,359.39 : 1,179,930.33 = 549,483.90 : x
  2. Step 2: Convert to fraction form
    855,359.39/1,179,930.33 = 549,483.90/x
  3. Step 3: Cross multiply
    855,359.39x = 1,179,930.33 × 549,483.90
  4. Step 4: Simplify right side
    855,359.39x = 648,352,719,456.69
  5. Step 5: Solve for x
    x = 648,352,719,456.69/855,359.39
  6. Step 6: Final answer
    x = 757,988.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.