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Finding the Fourth Proportional to 612,450.45, 918,886.17 and 275,727.18

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Solution

The fourth proportional to 612,450.45, 918,886.17 and 275,727.18 is: 413,685.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,450.45 : 918,886.17 = 275,727.18 : x
  2. Step 2: Convert to fraction form
    612,450.45/918,886.17 = 275,727.18/x
  3. Step 3: Cross multiply
    612,450.45x = 918,886.17 × 275,727.18
  4. Step 4: Simplify right side
    612,450.45x = 253,361,892,395.10
  5. Step 5: Solve for x
    x = 253,361,892,395.10/612,450.45
  6. Step 6: Final answer
    x = 413,685.54

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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.