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Finding the Fourth Proportional to 673,886.89, 929,960.21 and 367,961.10

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Solution

The fourth proportional to 673,886.89, 929,960.21 and 367,961.10 is: 507,784.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,886.89 : 929,960.21 = 367,961.10 : x
  2. Step 2: Convert to fraction form
    673,886.89/929,960.21 = 367,961.10/x
  3. Step 3: Cross multiply
    673,886.89x = 929,960.21 × 367,961.10
  4. Step 4: Simplify right side
    673,886.89x = 342,189,186,235.09
  5. Step 5: Solve for x
    x = 342,189,186,235.09/673,886.89
  6. Step 6: Final answer
    x = 507,784.30

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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.