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Finding the Fourth Proportional to 513,615.40, 771,344.70 and 373,532.20

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Solution

The fourth proportional to 513,615.40, 771,344.70 and 373,532.20 is: 560,968.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,615.40 : 771,344.70 = 373,532.20 : x
  2. Step 2: Convert to fraction form
    513,615.40/771,344.70 = 373,532.20/x
  3. Step 3: Cross multiply
    513,615.40x = 771,344.70 × 373,532.20
  4. Step 4: Simplify right side
    513,615.40x = 288,122,082,749.34
  5. Step 5: Solve for x
    x = 288,122,082,749.34/513,615.40
  6. Step 6: Final answer
    x = 560,968.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.