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Finding the Fourth Proportional to 629,899.01, 869,265.72 and 343,421.18

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Solution

The fourth proportional to 629,899.01, 869,265.72 and 343,421.18 is: 473,924.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,899.01 : 869,265.72 = 343,421.18 : x
  2. Step 2: Convert to fraction form
    629,899.01/869,265.72 = 343,421.18/x
  3. Step 3: Cross multiply
    629,899.01x = 869,265.72 × 343,421.18
  4. Step 4: Simplify right side
    629,899.01x = 298,524,254,949.62
  5. Step 5: Solve for x
    x = 298,524,254,949.62/629,899.01
  6. Step 6: Final answer
    x = 473,924.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.