Home / 764,191.76-1,054,586.93-420,062.96

Finding the Fourth Proportional to 764,191.76, 1,054,586.93 and 420,062.96

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Solution

The fourth proportional to 764,191.76, 1,054,586.93 and 420,062.96 is: 579,688.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,191.76 : 1,054,586.93 = 420,062.96 : x
  2. Step 2: Convert to fraction form
    764,191.76/1,054,586.93 = 420,062.96/x
  3. Step 3: Cross multiply
    764,191.76x = 1,054,586.93 × 420,062.96
  4. Step 4: Simplify right side
    764,191.76x = 442,992,903,027.83
  5. Step 5: Solve for x
    x = 442,992,903,027.83/764,191.76
  6. Step 6: Final answer
    x = 579,688.14

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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.