Home / 3,580,438.40-5,370,657.60-1,987,913.60

Finding the Fourth Proportional to 3,580,438.40, 5,370,657.60 and 1,987,913.60

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Solution

The fourth proportional to 3,580,438.40, 5,370,657.60 and 1,987,913.60 is: 2,981,870.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,580,438.40 : 5,370,657.60 = 1,987,913.60 : x
  2. Step 2: Convert to fraction form
    3,580,438.40/5,370,657.60 = 1,987,913.60/x
  3. Step 3: Cross multiply
    3,580,438.40x = 5,370,657.60 × 1,987,913.60
  4. Step 4: Simplify right side
    3,580,438.40x = 10,676,403,283,983.36
  5. Step 5: Solve for x
    x = 10,676,403,283,983.36/3,580,438.40
  6. Step 6: Final answer
    x = 2,981,870.40

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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.