Home / 443,428.48-611,908.32-252,441.28

Finding the Fourth Proportional to 443,428.48, 611,908.32 and 252,441.28

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Solution

The fourth proportional to 443,428.48, 611,908.32 and 252,441.28 is: 348,355.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,428.48 : 611,908.32 = 252,441.28 : x
  2. Step 2: Convert to fraction form
    443,428.48/611,908.32 = 252,441.28/x
  3. Step 3: Cross multiply
    443,428.48x = 611,908.32 × 252,441.28
  4. Step 4: Simplify right side
    443,428.48x = 154,470,919,543.45
  5. Step 5: Solve for x
    x = 154,470,919,543.45/443,428.48
  6. Step 6: Final answer
    x = 348,355.88

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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.