Home / 1,178,745.60-1,768,809.60-430,867.20

Finding the Fourth Proportional to 1,178,745.60, 1,768,809.60 and 430,867.20

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Solution

The fourth proportional to 1,178,745.60, 1,768,809.60 and 430,867.20 is: 646,553.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,745.60 : 1,768,809.60 = 430,867.20 : x
  2. Step 2: Convert to fraction form
    1,178,745.60/1,768,809.60 = 430,867.20/x
  3. Step 3: Cross multiply
    1,178,745.60x = 1,768,809.60 × 430,867.20
  4. Step 4: Simplify right side
    1,178,745.60x = 762,122,039,685.12
  5. Step 5: Solve for x
    x = 762,122,039,685.12/1,178,745.60
  6. Step 6: Final answer
    x = 646,553.45

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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.