Home / 763,749.20-1,145,623.80-587,147.60

Finding the Fourth Proportional to 763,749.20, 1,145,623.80 and 587,147.60

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Solution

The fourth proportional to 763,749.20, 1,145,623.80 and 587,147.60 is: 880,721.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,749.20 : 1,145,623.80 = 587,147.60 : x
  2. Step 2: Convert to fraction form
    763,749.20/1,145,623.80 = 587,147.60/x
  3. Step 3: Cross multiply
    763,749.20x = 1,145,623.80 × 587,147.60
  4. Step 4: Simplify right side
    763,749.20x = 672,650,264,672.88
  5. Step 5: Solve for x
    x = 672,650,264,672.88/763,749.20
  6. Step 6: Final answer
    x = 880,721.40

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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.