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Finding the Fourth Proportional to 832,507.56, 1,148,493.81 and 488,168.67

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Solution

The fourth proportional to 832,507.56, 1,148,493.81 and 488,168.67 is: 673,457.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,507.56 : 1,148,493.81 = 488,168.67 : x
  2. Step 2: Convert to fraction form
    832,507.56/1,148,493.81 = 488,168.67/x
  3. Step 3: Cross multiply
    832,507.56x = 1,148,493.81 × 488,168.67
  4. Step 4: Simplify right side
    832,507.56x = 560,658,695,730.93
  5. Step 5: Solve for x
    x = 560,658,695,730.93/832,507.56
  6. Step 6: Final answer
    x = 673,457.78

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Double scale
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Similar ratio
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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.