Home / 419,297.04-578,632.68-228,309.48

Finding the Fourth Proportional to 419,297.04, 578,632.68 and 228,309.48

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Solution

The fourth proportional to 419,297.04, 578,632.68 and 228,309.48 is: 315,068.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,297.04 : 578,632.68 = 228,309.48 : x
  2. Step 2: Convert to fraction form
    419,297.04/578,632.68 = 228,309.48/x
  3. Step 3: Cross multiply
    419,297.04x = 578,632.68 × 228,309.48
  4. Step 4: Simplify right side
    419,297.04x = 132,107,326,281.81
  5. Step 5: Solve for x
    x = 132,107,326,281.81/419,297.04
  6. Step 6: Final answer
    x = 315,068.59

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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.