Home / 886,913.90-1,330,698.90-287,894.60

Finding the Fourth Proportional to 886,913.90, 1,330,698.90 and 287,894.60

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Solution

The fourth proportional to 886,913.90, 1,330,698.90 and 287,894.60 is: 431,948.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,913.90 : 1,330,698.90 = 287,894.60 : x
  2. Step 2: Convert to fraction form
    886,913.90/1,330,698.90 = 287,894.60/x
  3. Step 3: Cross multiply
    886,913.90x = 1,330,698.90 × 287,894.60
  4. Step 4: Simplify right side
    886,913.90x = 383,101,027,535.94
  5. Step 5: Solve for x
    x = 383,101,027,535.94/886,913.90
  6. Step 6: Final answer
    x = 431,948.39

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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.