Home / 419,309.04-578,628.73-238,017.68

Finding the Fourth Proportional to 419,309.04, 578,628.73 and 238,017.68

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Solution

The fourth proportional to 419,309.04, 578,628.73 and 238,017.68 is: 328,454.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,309.04 : 578,628.73 = 238,017.68 : x
  2. Step 2: Convert to fraction form
    419,309.04/578,628.73 = 238,017.68/x
  3. Step 3: Cross multiply
    419,309.04x = 578,628.73 × 238,017.68
  4. Step 4: Simplify right side
    419,309.04x = 137,723,867,895.95
  5. Step 5: Solve for x
    x = 137,723,867,895.95/419,309.04
  6. Step 6: Final answer
    x = 328,454.33

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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.