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Finding the Fourth Proportional to 454,824.48, 627,770.34 and 309,870.12

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Solution

The fourth proportional to 454,824.48, 627,770.34 and 309,870.12 is: 427,697.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,824.48 : 627,770.34 = 309,870.12 : x
  2. Step 2: Convert to fraction form
    454,824.48/627,770.34 = 309,870.12/x
  3. Step 3: Cross multiply
    454,824.48x = 627,770.34 × 309,870.12
  4. Step 4: Simplify right side
    454,824.48x = 194,527,270,588.24
  5. Step 5: Solve for x
    x = 194,527,270,588.24/454,824.48
  6. Step 6: Final answer
    x = 427,697.45

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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.