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Finding the Fourth Proportional to 553,762.70, 764,192.84 and 299,113.89

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Solution

The fourth proportional to 553,762.70, 764,192.84 and 299,113.89 is: 412,777.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,762.70 : 764,192.84 = 299,113.89 : x
  2. Step 2: Convert to fraction form
    553,762.70/764,192.84 = 299,113.89/x
  3. Step 3: Cross multiply
    553,762.70x = 764,192.84 × 299,113.89
  4. Step 4: Simplify right side
    553,762.70x = 228,580,693,082.55
  5. Step 5: Solve for x
    x = 228,580,693,082.55/553,762.70
  6. Step 6: Final answer
    x = 412,777.34

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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.