Home / 989,378.35-1,483,950.88-442,336.75

Finding the Fourth Proportional to 989,378.35, 1,483,950.88 and 442,336.75

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Solution

The fourth proportional to 989,378.35, 1,483,950.88 and 442,336.75 is: 663,452.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,378.35 : 1,483,950.88 = 442,336.75 : x
  2. Step 2: Convert to fraction form
    989,378.35/1,483,950.88 = 442,336.75/x
  3. Step 3: Cross multiply
    989,378.35x = 1,483,950.88 × 442,336.75
  4. Step 4: Simplify right side
    989,378.35x = 656,406,006,261.88
  5. Step 5: Solve for x
    x = 656,406,006,261.88/989,378.35
  6. Step 6: Final answer
    x = 663,452.97

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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.