Home / 1,105,754.40-1,656,007.20-680,601.60

Finding the Fourth Proportional to 1,105,754.40, 1,656,007.20 and 680,601.60

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Solution

The fourth proportional to 1,105,754.40, 1,656,007.20 and 680,601.60 is: 1,019,287.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,754.40 : 1,656,007.20 = 680,601.60 : x
  2. Step 2: Convert to fraction form
    1,105,754.40/1,656,007.20 = 680,601.60/x
  3. Step 3: Cross multiply
    1,105,754.40x = 1,656,007.20 × 680,601.60
  4. Step 4: Simplify right side
    1,105,754.40x = 1,127,081,149,931.52
  5. Step 5: Solve for x
    x = 1,127,081,149,931.52/1,105,754.40
  6. Step 6: Final answer
    x = 1,019,287.06

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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.