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Finding the Fourth Proportional to 570,078.20, 854,553.30 and 270,031.40

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Solution

The fourth proportional to 570,078.20, 854,553.30 and 270,031.40 is: 404,779.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,078.20 : 854,553.30 = 270,031.40 : x
  2. Step 2: Convert to fraction form
    570,078.20/854,553.30 = 270,031.40/x
  3. Step 3: Cross multiply
    570,078.20x = 854,553.30 × 270,031.40
  4. Step 4: Simplify right side
    570,078.20x = 230,756,223,973.62
  5. Step 5: Solve for x
    x = 230,756,223,973.62/570,078.20
  6. Step 6: Final answer
    x = 404,779.95

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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.