Home / 1,086,495.40-1,626,632.70-666,591.40

Finding the Fourth Proportional to 1,086,495.40, 1,626,632.70 and 666,591.40

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Solution

The fourth proportional to 1,086,495.40, 1,626,632.70 and 666,591.40 is: 997,978.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,495.40 : 1,626,632.70 = 666,591.40 : x
  2. Step 2: Convert to fraction form
    1,086,495.40/1,626,632.70 = 666,591.40/x
  3. Step 3: Cross multiply
    1,086,495.40x = 1,626,632.70 × 666,591.40
  4. Step 4: Simplify right side
    1,086,495.40x = 1,084,299,368,778.78
  5. Step 5: Solve for x
    x = 1,084,299,368,778.78/1,086,495.40
  6. Step 6: Final answer
    x = 997,978.79

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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.