Home / 648,109.20-972,163.80-530,011.20

Finding the Fourth Proportional to 648,109.20, 972,163.80 and 530,011.20

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Solution

The fourth proportional to 648,109.20, 972,163.80 and 530,011.20 is: 795,016.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,109.20 : 972,163.80 = 530,011.20 : x
  2. Step 2: Convert to fraction form
    648,109.20/972,163.80 = 530,011.20/x
  3. Step 3: Cross multiply
    648,109.20x = 972,163.80 × 530,011.20
  4. Step 4: Simplify right side
    648,109.20x = 515,257,702,234.56
  5. Step 5: Solve for x
    x = 515,257,702,234.56/648,109.20
  6. Step 6: Final answer
    x = 795,016.80

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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.