Home / 764,780.32-1,055,403.60-425,262.88

Finding the Fourth Proportional to 764,780.32, 1,055,403.60 and 425,262.88

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Solution

The fourth proportional to 764,780.32, 1,055,403.60 and 425,262.88 is: 586,866.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,780.32 : 1,055,403.60 = 425,262.88 : x
  2. Step 2: Convert to fraction form
    764,780.32/1,055,403.60 = 425,262.88/x
  3. Step 3: Cross multiply
    764,780.32x = 1,055,403.60 × 425,262.88
  4. Step 4: Simplify right side
    764,780.32x = 448,823,974,498.37
  5. Step 5: Solve for x
    x = 448,823,974,498.37/764,780.32
  6. Step 6: Final answer
    x = 586,866.53

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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.