Home / 1,087,474.60-1,631,430.60-911,202.40

Finding the Fourth Proportional to 1,087,474.60, 1,631,430.60 and 911,202.40

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Solution

The fourth proportional to 1,087,474.60, 1,631,430.60 and 911,202.40 is: 1,366,986.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,474.60 : 1,631,430.60 = 911,202.40 : x
  2. Step 2: Convert to fraction form
    1,087,474.60/1,631,430.60 = 911,202.40/x
  3. Step 3: Cross multiply
    1,087,474.60x = 1,631,430.60 × 911,202.40
  4. Step 4: Simplify right side
    1,087,474.60x = 1,486,563,478,153.44
  5. Step 5: Solve for x
    x = 1,486,563,478,153.44/1,087,474.60
  6. Step 6: Final answer
    x = 1,366,986.85

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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.