Home / 443,420.46-611,968.86-252,403.02

Finding the Fourth Proportional to 443,420.46, 611,968.86 and 252,403.02

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Solution

The fourth proportional to 443,420.46, 611,968.86 and 252,403.02 is: 348,343.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,420.46 : 611,968.86 = 252,403.02 : x
  2. Step 2: Convert to fraction form
    443,420.46/611,968.86 = 252,403.02/x
  3. Step 3: Cross multiply
    443,420.46x = 611,968.86 × 252,403.02
  4. Step 4: Simplify right side
    443,420.46x = 154,462,788,409.96
  5. Step 5: Solve for x
    x = 154,462,788,409.96/443,420.46
  6. Step 6: Final answer
    x = 348,343.85

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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.