Home / 1,178,426.97-1,626,183.47-720,308.60

Finding the Fourth Proportional to 1,178,426.97, 1,626,183.47 and 720,308.60

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Solution

The fourth proportional to 1,178,426.97, 1,626,183.47 and 720,308.60 is: 993,997.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,426.97 : 1,626,183.47 = 720,308.60 : x
  2. Step 2: Convert to fraction form
    1,178,426.97/1,626,183.47 = 720,308.60/x
  3. Step 3: Cross multiply
    1,178,426.97x = 1,626,183.47 × 720,308.60
  4. Step 4: Simplify right side
    1,178,426.97x = 1,171,353,926,886.38
  5. Step 5: Solve for x
    x = 1,171,353,926,886.38/1,178,426.97
  6. Step 6: Final answer
    x = 993,997.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.