Home / 787,664.60-1,180,622.10-432,933.20

Finding the Fourth Proportional to 787,664.60, 1,180,622.10 and 432,933.20

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Solution

The fourth proportional to 787,664.60, 1,180,622.10 and 432,933.20 is: 648,918.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,664.60 : 1,180,622.10 = 432,933.20 : x
  2. Step 2: Convert to fraction form
    787,664.60/1,180,622.10 = 432,933.20/x
  3. Step 3: Cross multiply
    787,664.60x = 1,180,622.10 × 432,933.20
  4. Step 4: Simplify right side
    787,664.60x = 511,130,503,743.72
  5. Step 5: Solve for x
    x = 511,130,503,743.72/787,664.60
  6. Step 6: Final answer
    x = 648,918.97

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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.