Home / 644,820.77-965,748.14-374,278.88

Finding the Fourth Proportional to 644,820.77, 965,748.14 and 374,278.88

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Solution

The fourth proportional to 644,820.77, 965,748.14 and 374,278.88 is: 560,557.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,820.77 : 965,748.14 = 374,278.88 : x
  2. Step 2: Convert to fraction form
    644,820.77/965,748.14 = 374,278.88/x
  3. Step 3: Cross multiply
    644,820.77x = 965,748.14 × 374,278.88
  4. Step 4: Simplify right side
    644,820.77x = 361,459,126,904.69
  5. Step 5: Solve for x
    x = 361,459,126,904.69/644,820.77
  6. Step 6: Final answer
    x = 560,557.51

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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.