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Finding the Fourth Proportional to 648,636.76, 972,907.14 and 227,916.76

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Solution

The fourth proportional to 648,636.76, 972,907.14 and 227,916.76 is: 341,858.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,636.76 : 972,907.14 = 227,916.76 : x
  2. Step 2: Convert to fraction form
    648,636.76/972,907.14 = 227,916.76/x
  3. Step 3: Cross multiply
    648,636.76x = 972,907.14 × 227,916.76
  4. Step 4: Simplify right side
    648,636.76x = 221,741,843,129.67
  5. Step 5: Solve for x
    x = 221,741,843,129.67/648,636.76
  6. Step 6: Final answer
    x = 341,858.27

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1.5x scale

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.