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Finding the Fourth Proportional to 438,842.45, 657,199.55 and 303,526.76

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Solution

The fourth proportional to 438,842.45, 657,199.55 and 303,526.76 is: 454,554.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,842.45 : 657,199.55 = 303,526.76 : x
  2. Step 2: Convert to fraction form
    438,842.45/657,199.55 = 303,526.76/x
  3. Step 3: Cross multiply
    438,842.45x = 657,199.55 × 303,526.76
  4. Step 4: Simplify right side
    438,842.45x = 199,477,647,557.78
  5. Step 5: Solve for x
    x = 199,477,647,557.78/438,842.45
  6. Step 6: Final answer
    x = 454,554.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.