Home / 419,530.41-578,946.73-228,539.70

Finding the Fourth Proportional to 419,530.41, 578,946.73 and 228,539.70

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Solution

The fourth proportional to 419,530.41, 578,946.73 and 228,539.70 is: 315,381.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,530.41 : 578,946.73 = 228,539.70 : x
  2. Step 2: Convert to fraction form
    419,530.41/578,946.73 = 228,539.70/x
  3. Step 3: Cross multiply
    419,530.41x = 578,946.73 × 228,539.70
  4. Step 4: Simplify right side
    419,530.41x = 132,312,311,990.18
  5. Step 5: Solve for x
    x = 132,312,311,990.18/419,530.41
  6. Step 6: Final answer
    x = 315,381.93

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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.