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Finding the Fourth Proportional to 673,419.18, 929,313.90 and 371,613.18

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Solution

The fourth proportional to 673,419.18, 929,313.90 and 371,613.18 is: 512,823.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,419.18 : 929,313.90 = 371,613.18 : x
  2. Step 2: Convert to fraction form
    673,419.18/929,313.90 = 371,613.18/x
  3. Step 3: Cross multiply
    673,419.18x = 929,313.90 × 371,613.18
  4. Step 4: Simplify right side
    673,419.18x = 345,345,293,597.20
  5. Step 5: Solve for x
    x = 345,345,293,597.20/673,419.18
  6. Step 6: Final answer
    x = 512,823.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.