Home / 409,389.90-564,999.66-228,131.34

Finding the Fourth Proportional to 409,389.90, 564,999.66 and 228,131.34

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Solution

The fourth proportional to 409,389.90, 564,999.66 and 228,131.34 is: 314,844.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,389.90 : 564,999.66 = 228,131.34 : x
  2. Step 2: Convert to fraction form
    409,389.90/564,999.66 = 228,131.34/x
  3. Step 3: Cross multiply
    409,389.90x = 564,999.66 × 228,131.34
  4. Step 4: Simplify right side
    409,389.90x = 128,894,129,535.34
  5. Step 5: Solve for x
    x = 128,894,129,535.34/409,389.90
  6. Step 6: Final answer
    x = 314,844.43

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1.5x scale

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.