Home / 815,302.44-1,125,221.13-493,014.87

Finding the Fourth Proportional to 815,302.44, 1,125,221.13 and 493,014.87

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Solution

The fourth proportional to 815,302.44, 1,125,221.13 and 493,014.87 is: 680,423.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,302.44 : 1,125,221.13 = 493,014.87 : x
  2. Step 2: Convert to fraction form
    815,302.44/1,125,221.13 = 493,014.87/x
  3. Step 3: Cross multiply
    815,302.44x = 1,125,221.13 × 493,014.87
  4. Step 4: Simplify right side
    815,302.44x = 554,750,749,128.20
  5. Step 5: Solve for x
    x = 554,750,749,128.20/815,302.44
  6. Step 6: Final answer
    x = 680,423.27

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1.5x scale

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.