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Finding the Fourth Proportional to 673,900.03, 929,986.54 and 367,978.54

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Solution

The fourth proportional to 673,900.03, 929,986.54 and 367,978.54 is: 507,812.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,900.03 : 929,986.54 = 367,978.54 : x
  2. Step 2: Convert to fraction form
    673,900.03/929,986.54 = 367,978.54/x
  3. Step 3: Cross multiply
    673,900.03x = 929,986.54 × 367,978.54
  4. Step 4: Simplify right side
    673,900.03x = 342,215,085,963.94
  5. Step 5: Solve for x
    x = 342,215,085,963.94/673,900.03
  6. Step 6: Final answer
    x = 507,812.84

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1.5x scale

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.