Home / 763,964.40-1,145,109.60-384,279.60

Finding the Fourth Proportional to 763,964.40, 1,145,109.60 and 384,279.60

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Solution

The fourth proportional to 763,964.40, 1,145,109.60 and 384,279.60 is: 575,998.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,964.40 : 1,145,109.60 = 384,279.60 : x
  2. Step 2: Convert to fraction form
    763,964.40/1,145,109.60 = 384,279.60/x
  3. Step 3: Cross multiply
    763,964.40x = 1,145,109.60 × 384,279.60
  4. Step 4: Simplify right side
    763,964.40x = 440,042,259,044.16
  5. Step 5: Solve for x
    x = 440,042,259,044.16/763,964.40
  6. Step 6: Final answer
    x = 575,998.38

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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.