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Finding the Fourth Proportional to 630,197.92, 943,076.40 and 393,652

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Solution

The fourth proportional to 630,197.92, 943,076.40 and 393,652 is: 589,090.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,197.92 : 943,076.40 = 393,652 : x
  2. Step 2: Convert to fraction form
    630,197.92/943,076.40 = 393,652/x
  3. Step 3: Cross multiply
    630,197.92x = 943,076.40 × 393,652
  4. Step 4: Simplify right side
    630,197.92x = 371,243,911,012.80
  5. Step 5: Solve for x
    x = 371,243,911,012.80/630,197.92
  6. Step 6: Final answer
    x = 589,090.98

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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.