Home / 887,830.30-1,330,214.55-413,542.90

Finding the Fourth Proportional to 887,830.30, 1,330,214.55 and 413,542.90

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Solution

The fourth proportional to 887,830.30, 1,330,214.55 and 413,542.90 is: 619,601.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,830.30 : 1,330,214.55 = 413,542.90 : x
  2. Step 2: Convert to fraction form
    887,830.30/1,330,214.55 = 413,542.90/x
  3. Step 3: Cross multiply
    887,830.30x = 1,330,214.55 × 413,542.90
  4. Step 4: Simplify right side
    887,830.30x = 550,100,782,629.20
  5. Step 5: Solve for x
    x = 550,100,782,629.20/887,830.30
  6. Step 6: Final answer
    x = 619,601.27

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1.5x scale

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.