Home / 909,123.08-1,363,465.91-278,042.36

Finding the Fourth Proportional to 909,123.08, 1,363,465.91 and 278,042.36

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Solution

The fourth proportional to 909,123.08, 1,363,465.91 and 278,042.36 is: 416,996.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,123.08 : 1,363,465.91 = 278,042.36 : x
  2. Step 2: Convert to fraction form
    909,123.08/1,363,465.91 = 278,042.36/x
  3. Step 3: Cross multiply
    909,123.08x = 1,363,465.91 × 278,042.36
  4. Step 4: Simplify right side
    909,123.08x = 379,101,273,273.72
  5. Step 5: Solve for x
    x = 379,101,273,273.72/909,123.08
  6. Step 6: Final answer
    x = 416,996.65

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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.