Home / 961,720.40-1,442,710.20-330,827.60

Finding the Fourth Proportional to 961,720.40, 1,442,710.20 and 330,827.60

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Solution

The fourth proportional to 961,720.40, 1,442,710.20 and 330,827.60 is: 496,285.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,720.40 : 1,442,710.20 = 330,827.60 : x
  2. Step 2: Convert to fraction form
    961,720.40/1,442,710.20 = 330,827.60/x
  3. Step 3: Cross multiply
    961,720.40x = 1,442,710.20 × 330,827.60
  4. Step 4: Simplify right side
    961,720.40x = 477,288,352,961.52
  5. Step 5: Solve for x
    x = 477,288,352,961.52/961,720.40
  6. Step 6: Final answer
    x = 496,285.98

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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.