Home / 629,888.94-869,258.79-343,421.10

Finding the Fourth Proportional to 629,888.94, 869,258.79 and 343,421.10

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Solution

The fourth proportional to 629,888.94, 869,258.79 and 343,421.10 is: 473,927.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,888.94 : 869,258.79 = 343,421.10 : x
  2. Step 2: Convert to fraction form
    629,888.94/869,258.79 = 343,421.10/x
  3. Step 3: Cross multiply
    629,888.94x = 869,258.79 × 343,421.10
  4. Step 4: Simplify right side
    629,888.94x = 298,521,809,846.47
  5. Step 5: Solve for x
    x = 298,521,809,846.47/629,888.94
  6. Step 6: Final answer
    x = 473,927.69

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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.