Home / 765,738.37-1,148,615.66-316,149.49

Finding the Fourth Proportional to 765,738.37, 1,148,615.66 and 316,149.49

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Solution

The fourth proportional to 765,738.37, 1,148,615.66 and 316,149.49 is: 474,227.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,738.37 : 1,148,615.66 = 316,149.49 : x
  2. Step 2: Convert to fraction form
    765,738.37/1,148,615.66 = 316,149.49/x
  3. Step 3: Cross multiply
    765,738.37x = 1,148,615.66 × 316,149.49
  4. Step 4: Simplify right side
    765,738.37x = 363,134,255,115.01
  5. Step 5: Solve for x
    x = 363,134,255,115.01/765,738.37
  6. Step 6: Final answer
    x = 474,227.58

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1.5x scale

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.