Home / 1,086,000.40-1,627,396.80-787,110.40

Finding the Fourth Proportional to 1,086,000.40, 1,627,396.80 and 787,110.40

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Solution

The fourth proportional to 1,086,000.40, 1,627,396.80 and 787,110.40 is: 1,179,503.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,000.40 : 1,627,396.80 = 787,110.40 : x
  2. Step 2: Convert to fraction form
    1,086,000.40/1,627,396.80 = 787,110.40/x
  3. Step 3: Cross multiply
    1,086,000.40x = 1,627,396.80 × 787,110.40
  4. Step 4: Simplify right side
    1,086,000.40x = 1,280,940,946,206.72
  5. Step 5: Solve for x
    x = 1,280,940,946,206.72/1,086,000.40
  6. Step 6: Final answer
    x = 1,179,503.20

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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.