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Finding the Fourth Proportional to 612,324.78, 918,504.45 and 169,092.78

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Solution

The fourth proportional to 612,324.78, 918,504.45 and 169,092.78 is: 253,643.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,324.78 : 918,504.45 = 169,092.78 : x
  2. Step 2: Convert to fraction form
    612,324.78/918,504.45 = 169,092.78/x
  3. Step 3: Cross multiply
    612,324.78x = 918,504.45 × 169,092.78
  4. Step 4: Simplify right side
    612,324.78x = 155,312,470,892.87
  5. Step 5: Solve for x
    x = 155,312,470,892.87/612,324.78
  6. Step 6: Final answer
    x = 253,643.94

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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.