Home / 961,220.40-1,326,430.60-531,474.80

Finding the Fourth Proportional to 961,220.40, 1,326,430.60 and 531,474.80

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Solution

The fourth proportional to 961,220.40, 1,326,430.60 and 531,474.80 is: 733,405.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,220.40 : 1,326,430.60 = 531,474.80 : x
  2. Step 2: Convert to fraction form
    961,220.40/1,326,430.60 = 531,474.80/x
  3. Step 3: Cross multiply
    961,220.40x = 1,326,430.60 × 531,474.80
  4. Step 4: Simplify right side
    961,220.40x = 704,964,437,848.88
  5. Step 5: Solve for x
    x = 704,964,437,848.88/961,220.40
  6. Step 6: Final answer
    x = 733,405.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.