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Finding the Fourth Proportional to 626,647.03, 940,326.04 and 338,455.10

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Solution

The fourth proportional to 626,647.03, 940,326.04 and 338,455.10 is: 507,874.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,647.03 : 940,326.04 = 338,455.10 : x
  2. Step 2: Convert to fraction form
    626,647.03/940,326.04 = 338,455.10/x
  3. Step 3: Cross multiply
    626,647.03x = 940,326.04 × 338,455.10
  4. Step 4: Simplify right side
    626,647.03x = 318,258,143,900.80
  5. Step 5: Solve for x
    x = 318,258,143,900.80/626,647.03
  6. Step 6: Final answer
    x = 507,874.66

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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.