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Finding the Fourth Proportional to 570,053.20, 854,515.80 and 270,006.40

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Solution

The fourth proportional to 570,053.20, 854,515.80 and 270,006.40 is: 404,742.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,053.20 : 854,515.80 = 270,006.40 : x
  2. Step 2: Convert to fraction form
    570,053.20/854,515.80 = 270,006.40/x
  3. Step 3: Cross multiply
    570,053.20x = 854,515.80 × 270,006.40
  4. Step 4: Simplify right side
    570,053.20x = 230,724,734,901.12
  5. Step 5: Solve for x
    x = 230,724,734,901.12/570,053.20
  6. Step 6: Final answer
    x = 404,742.46

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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.