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Finding the Fourth Proportional to 651,931, 899,668.02 and 380,187.34

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Solution

The fourth proportional to 651,931, 899,668.02 and 380,187.34 is: 524,660.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,931 : 899,668.02 = 380,187.34 : x
  2. Step 2: Convert to fraction form
    651,931/899,668.02 = 380,187.34/x
  3. Step 3: Cross multiply
    651,931x = 899,668.02 × 380,187.34
  4. Step 4: Simplify right side
    651,931x = 342,042,391,406.87
  5. Step 5: Solve for x
    x = 342,042,391,406.87/651,931
  6. Step 6: Final answer
    x = 524,660.42

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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.