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Finding the Fourth Proportional to 513,575.40, 768,748.50 and 352,709.40

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Solution

The fourth proportional to 513,575.40, 768,748.50 and 352,709.40 is: 527,955.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,575.40 : 768,748.50 = 352,709.40 : x
  2. Step 2: Convert to fraction form
    513,575.40/768,748.50 = 352,709.40/x
  3. Step 3: Cross multiply
    513,575.40x = 768,748.50 × 352,709.40
  4. Step 4: Simplify right side
    513,575.40x = 271,144,822,185.90
  5. Step 5: Solve for x
    x = 271,144,822,185.90/513,575.40
  6. Step 6: Final answer
    x = 527,955.24

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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.