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Finding the Fourth Proportional to 338,440.05, 507,660.08 and 328,598.55

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Solution

The fourth proportional to 338,440.05, 507,660.08 and 328,598.55 is: 492,897.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,440.05 : 507,660.08 = 328,598.55 : x
  2. Step 2: Convert to fraction form
    338,440.05/507,660.08 = 328,598.55/x
  3. Step 3: Cross multiply
    338,440.05x = 507,660.08 × 328,598.55
  4. Step 4: Simplify right side
    338,440.05x = 166,816,364,537.89
  5. Step 5: Solve for x
    x = 166,816,364,537.89/338,440.05
  6. Step 6: Final answer
    x = 492,897.83

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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.