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Finding the Fourth Proportional to 553,776.06, 764,211.27 and 299,127.25

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Solution

The fourth proportional to 553,776.06, 764,211.27 and 299,127.25 is: 412,795.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,776.06 : 764,211.27 = 299,127.25 : x
  2. Step 2: Convert to fraction form
    553,776.06/764,211.27 = 299,127.25/x
  3. Step 3: Cross multiply
    553,776.06x = 764,211.27 × 299,127.25
  4. Step 4: Simplify right side
    553,776.06x = 228,596,415,614.11
  5. Step 5: Solve for x
    x = 228,596,415,614.11/553,776.06
  6. Step 6: Final answer
    x = 412,795.77

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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.