Home / 1,100,805.40-1,651,208.10-990,580.60

Finding the Fourth Proportional to 1,100,805.40, 1,651,208.10 and 990,580.60

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Solution

The fourth proportional to 1,100,805.40, 1,651,208.10 and 990,580.60 is: 1,485,870.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,805.40 : 1,651,208.10 = 990,580.60 : x
  2. Step 2: Convert to fraction form
    1,100,805.40/1,651,208.10 = 990,580.60/x
  3. Step 3: Cross multiply
    1,100,805.40x = 1,651,208.10 × 990,580.60
  4. Step 4: Simplify right side
    1,100,805.40x = 1,635,654,710,422.86
  5. Step 5: Solve for x
    x = 1,635,654,710,422.86/1,100,805.40
  6. Step 6: Final answer
    x = 1,485,870.90

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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.