Home / 759,957.28-1,048,771.92-420,419.68

Finding the Fourth Proportional to 759,957.28, 1,048,771.92 and 420,419.68

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Solution

The fourth proportional to 759,957.28, 1,048,771.92 and 420,419.68 is: 580,196.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,957.28 : 1,048,771.92 = 420,419.68 : x
  2. Step 2: Convert to fraction form
    759,957.28/1,048,771.92 = 420,419.68/x
  3. Step 3: Cross multiply
    759,957.28x = 1,048,771.92 × 420,419.68
  4. Step 4: Simplify right side
    759,957.28x = 440,924,354,999.39
  5. Step 5: Solve for x
    x = 440,924,354,999.39/759,957.28
  6. Step 6: Final answer
    x = 580,196.24

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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.