Home / 887,078.40-1,330,289.55-288,059.10

Finding the Fourth Proportional to 887,078.40, 1,330,289.55 and 288,059.10

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Solution

The fourth proportional to 887,078.40, 1,330,289.55 and 288,059.10 is: 431,982.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,078.40 : 1,330,289.55 = 288,059.10 : x
  2. Step 2: Convert to fraction form
    887,078.40/1,330,289.55 = 288,059.10/x
  3. Step 3: Cross multiply
    887,078.40x = 1,330,289.55 × 288,059.10
  4. Step 4: Simplify right side
    887,078.40x = 383,202,010,512.41
  5. Step 5: Solve for x
    x = 383,202,010,512.41/887,078.40
  6. Step 6: Final answer
    x = 431,982.12

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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.