Home / 2,800,606.40-4,200,909.60-907,539.20

Finding the Fourth Proportional to 2,800,606.40, 4,200,909.60 and 907,539.20

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Solution

The fourth proportional to 2,800,606.40, 4,200,909.60 and 907,539.20 is: 1,361,308.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800,606.40 : 4,200,909.60 = 907,539.20 : x
  2. Step 2: Convert to fraction form
    2,800,606.40/4,200,909.60 = 907,539.20/x
  3. Step 3: Cross multiply
    2,800,606.40x = 4,200,909.60 × 907,539.20
  4. Step 4: Simplify right side
    2,800,606.40x = 3,812,490,137,656.32
  5. Step 5: Solve for x
    x = 3,812,490,137,656.32/2,800,606.40
  6. Step 6: Final answer
    x = 1,361,308.80

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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.