Home / 1,100,805.40-1,651,208.10-680,901.40

Finding the Fourth Proportional to 1,100,805.40, 1,651,208.10 and 680,901.40

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Solution

The fourth proportional to 1,100,805.40, 1,651,208.10 and 680,901.40 is: 1,021,352.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,805.40 : 1,651,208.10 = 680,901.40 : x
  2. Step 2: Convert to fraction form
    1,100,805.40/1,651,208.10 = 680,901.40/x
  3. Step 3: Cross multiply
    1,100,805.40x = 1,651,208.10 × 680,901.40
  4. Step 4: Simplify right side
    1,100,805.40x = 1,124,309,906,981.34
  5. Step 5: Solve for x
    x = 1,124,309,906,981.34/1,100,805.40
  6. Step 6: Final answer
    x = 1,021,352.10

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Double scale
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Similar ratio
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1.5x scale

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.