Home / 764,818.24-1,055,405.82-425,279.20

Finding the Fourth Proportional to 764,818.24, 1,055,405.82 and 425,279.20

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Solution

The fourth proportional to 764,818.24, 1,055,405.82 and 425,279.20 is: 586,861.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,818.24 : 1,055,405.82 = 425,279.20 : x
  2. Step 2: Convert to fraction form
    764,818.24/1,055,405.82 = 425,279.20/x
  3. Step 3: Cross multiply
    764,818.24x = 1,055,405.82 × 425,279.20
  4. Step 4: Simplify right side
    764,818.24x = 448,842,142,804.94
  5. Step 5: Solve for x
    x = 448,842,142,804.94/764,818.24
  6. Step 6: Final answer
    x = 586,861.19

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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.