Home / 419,030.18-578,263.69-228,043.56

Finding the Fourth Proportional to 419,030.18, 578,263.69 and 228,043.56

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Solution

The fourth proportional to 419,030.18, 578,263.69 and 228,043.56 is: 314,701.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,030.18 : 578,263.69 = 228,043.56 : x
  2. Step 2: Convert to fraction form
    419,030.18/578,263.69 = 228,043.56/x
  3. Step 3: Cross multiply
    419,030.18x = 578,263.69 × 228,043.56
  4. Step 4: Simplify right side
    419,030.18x = 131,869,310,486.34
  5. Step 5: Solve for x
    x = 131,869,310,486.34/419,030.18
  6. Step 6: Final answer
    x = 314,701.22

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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.