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Finding the Fourth Proportional to 480,597, 662,911.40 and 308,241.96

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Solution

The fourth proportional to 480,597, 662,911.40 and 308,241.96 is: 425,173.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,597 : 662,911.40 = 308,241.96 : x
  2. Step 2: Convert to fraction form
    480,597/662,911.40 = 308,241.96/x
  3. Step 3: Cross multiply
    480,597x = 662,911.40 × 308,241.96
  4. Step 4: Simplify right side
    480,597x = 204,337,109,242.34
  5. Step 5: Solve for x
    x = 204,337,109,242.34/480,597
  6. Step 6: Final answer
    x = 425,173.50

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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.