Home / 2,800,654.40-4,200,981.60-907,587.20

Finding the Fourth Proportional to 2,800,654.40, 4,200,981.60 and 907,587.20

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Solution

The fourth proportional to 2,800,654.40, 4,200,981.60 and 907,587.20 is: 1,361,380.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800,654.40 : 4,200,981.60 = 907,587.20 : x
  2. Step 2: Convert to fraction form
    2,800,654.40/4,200,981.60 = 907,587.20/x
  3. Step 3: Cross multiply
    2,800,654.40x = 4,200,981.60 × 907,587.20
  4. Step 4: Simplify right side
    2,800,654.40x = 3,812,757,127,595.52
  5. Step 5: Solve for x
    x = 3,812,757,127,595.52/2,800,654.40
  6. Step 6: Final answer
    x = 1,361,380.80

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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.