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Finding the Fourth Proportional to 908,602.90, 1,362,969.15 and 277,515.70

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Solution

The fourth proportional to 908,602.90, 1,362,969.15 and 277,515.70 is: 416,293.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,602.90 : 1,362,969.15 = 277,515.70 : x
  2. Step 2: Convert to fraction form
    908,602.90/1,362,969.15 = 277,515.70/x
  3. Step 3: Cross multiply
    908,602.90x = 1,362,969.15 × 277,515.70
  4. Step 4: Simplify right side
    908,602.90x = 378,245,337,740.66
  5. Step 5: Solve for x
    x = 378,245,337,740.66/908,602.90
  6. Step 6: Final answer
    x = 416,293.34

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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.