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Finding the Fourth Proportional to 673,842.40, 929,904.50 and 367,921.44

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Solution

The fourth proportional to 673,842.40, 929,904.50 and 367,921.44 is: 507,732.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,842.40 : 929,904.50 = 367,921.44 : x
  2. Step 2: Convert to fraction form
    673,842.40/929,904.50 = 367,921.44/x
  3. Step 3: Cross multiply
    673,842.40x = 929,904.50 × 367,921.44
  4. Step 4: Simplify right side
    673,842.40x = 342,131,802,702.48
  5. Step 5: Solve for x
    x = 342,131,802,702.48/673,842.40
  6. Step 6: Final answer
    x = 507,732.67

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Double scale
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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.