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Finding the Fourth Proportional to 569,412.80, 854,119.20 and 359,979.20

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Solution

The fourth proportional to 569,412.80, 854,119.20 and 359,979.20 is: 539,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,412.80 : 854,119.20 = 359,979.20 : x
  2. Step 2: Convert to fraction form
    569,412.80/854,119.20 = 359,979.20/x
  3. Step 3: Cross multiply
    569,412.80x = 854,119.20 × 359,979.20
  4. Step 4: Simplify right side
    569,412.80x = 307,465,146,320.64
  5. Step 5: Solve for x
    x = 307,465,146,320.64/569,412.80
  6. Step 6: Final answer
    x = 539,968.80

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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.