Home / 1,087,368.40-1,631,052.60-863,419.60

Finding the Fourth Proportional to 1,087,368.40, 1,631,052.60 and 863,419.60

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Solution

The fourth proportional to 1,087,368.40, 1,631,052.60 and 863,419.60 is: 1,295,129.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,368.40 : 1,631,052.60 = 863,419.60 : x
  2. Step 2: Convert to fraction form
    1,087,368.40/1,631,052.60 = 863,419.60/x
  3. Step 3: Cross multiply
    1,087,368.40x = 1,631,052.60 × 863,419.60
  4. Step 4: Simplify right side
    1,087,368.40x = 1,408,282,783,470.96
  5. Step 5: Solve for x
    x = 1,408,282,783,470.96/1,087,368.40
  6. Step 6: Final answer
    x = 1,295,129.40

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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.