Home / 886,983.90-1,330,216.65-318,299.10

Finding the Fourth Proportional to 886,983.90, 1,330,216.65 and 318,299.10

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Solution

The fourth proportional to 886,983.90, 1,330,216.65 and 318,299.10 is: 477,355.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,983.90 : 1,330,216.65 = 318,299.10 : x
  2. Step 2: Convert to fraction form
    886,983.90/1,330,216.65 = 318,299.10/x
  3. Step 3: Cross multiply
    886,983.90x = 1,330,216.65 × 318,299.10
  4. Step 4: Simplify right side
    886,983.90x = 423,406,762,500.02
  5. Step 5: Solve for x
    x = 423,406,762,500.02/886,983.90
  6. Step 6: Final answer
    x = 477,355.63

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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.