Home / 409,428.46-564,996.90-228,131.02

Finding the Fourth Proportional to 409,428.46, 564,996.90 and 228,131.02

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Solution

The fourth proportional to 409,428.46, 564,996.90 and 228,131.02 is: 314,812.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,428.46 : 564,996.90 = 228,131.02 : x
  2. Step 2: Convert to fraction form
    409,428.46/564,996.90 = 228,131.02/x
  3. Step 3: Cross multiply
    409,428.46x = 564,996.90 × 228,131.02
  4. Step 4: Simplify right side
    409,428.46x = 128,893,319,093.84
  5. Step 5: Solve for x
    x = 128,893,319,093.84/409,428.46
  6. Step 6: Final answer
    x = 314,812.80

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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.