Home / 629,729.30-869,035.07-343,248.77

Finding the Fourth Proportional to 629,729.30, 869,035.07 and 343,248.77

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Solution

The fourth proportional to 629,729.30, 869,035.07 and 343,248.77 is: 473,688.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,729.30 : 869,035.07 = 343,248.77 : x
  2. Step 2: Convert to fraction form
    629,729.30/869,035.07 = 343,248.77/x
  3. Step 3: Cross multiply
    629,729.30x = 869,035.07 × 343,248.77
  4. Step 4: Simplify right side
    629,729.30x = 298,295,216,705.42
  5. Step 5: Solve for x
    x = 298,295,216,705.42/629,729.30
  6. Step 6: Final answer
    x = 473,688.01

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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.