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Finding the Fourth Proportional to 630,744.80, 946,268.40 and 210,024.48

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Solution

The fourth proportional to 630,744.80, 946,268.40 and 210,024.48 is: 315,087.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,744.80 : 946,268.40 = 210,024.48 : x
  2. Step 2: Convert to fraction form
    630,744.80/946,268.40 = 210,024.48/x
  3. Step 3: Cross multiply
    630,744.80x = 946,268.40 × 210,024.48
  4. Step 4: Simplify right side
    630,744.80x = 198,739,528,650.43
  5. Step 5: Solve for x
    x = 198,739,528,650.43/630,744.80
  6. Step 6: Final answer
    x = 315,087.07

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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.