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Finding the Fourth Proportional to 569,869.20, 854,112.60 and 253,990.80

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Solution

The fourth proportional to 569,869.20, 854,112.60 and 253,990.80 is: 380,678.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,869.20 : 854,112.60 = 253,990.80 : x
  2. Step 2: Convert to fraction form
    569,869.20/854,112.60 = 253,990.80/x
  3. Step 3: Cross multiply
    569,869.20x = 854,112.60 × 253,990.80
  4. Step 4: Simplify right side
    569,869.20x = 216,936,742,564.08
  5. Step 5: Solve for x
    x = 216,936,742,564.08/569,869.20
  6. Step 6: Final answer
    x = 380,678.13

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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.