Home / 753,132.48-1,129,890-213,388.16

Finding the Fourth Proportional to 753,132.48, 1,129,890 and 213,388.16

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Solution

The fourth proportional to 753,132.48, 1,129,890 and 213,388.16 is: 320,136.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,132.48 : 1,129,890 = 213,388.16 : x
  2. Step 2: Convert to fraction form
    753,132.48/1,129,890 = 213,388.16/x
  3. Step 3: Cross multiply
    753,132.48x = 1,129,890 × 213,388.16
  4. Step 4: Simplify right side
    753,132.48x = 241,105,148,102.40
  5. Step 5: Solve for x
    x = 241,105,148,102.40/753,132.48
  6. Step 6: Final answer
    x = 320,136.44

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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.