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Finding the Fourth Proportional to 283,654.80, 425,482.20 and 276,656.40

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Solution

The fourth proportional to 283,654.80, 425,482.20 and 276,656.40 is: 414,984.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,654.80 : 425,482.20 = 276,656.40 : x
  2. Step 2: Convert to fraction form
    283,654.80/425,482.20 = 276,656.40/x
  3. Step 3: Cross multiply
    283,654.80x = 425,482.20 × 276,656.40
  4. Step 4: Simplify right side
    283,654.80x = 117,712,373,716.08
  5. Step 5: Solve for x
    x = 117,712,373,716.08/283,654.80
  6. Step 6: Final answer
    x = 414,984.60

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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.