Home / 764,077.84-1,054,358.95-419,909.81

Finding the Fourth Proportional to 764,077.84, 1,054,358.95 and 419,909.81

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Solution

The fourth proportional to 764,077.84, 1,054,358.95 and 419,909.81 is: 579,437.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,077.84 : 1,054,358.95 = 419,909.81 : x
  2. Step 2: Convert to fraction form
    764,077.84/1,054,358.95 = 419,909.81/x
  3. Step 3: Cross multiply
    764,077.84x = 1,054,358.95 × 419,909.81
  4. Step 4: Simplify right side
    764,077.84x = 442,735,661,619.39
  5. Step 5: Solve for x
    x = 442,735,661,619.39/764,077.84
  6. Step 6: Final answer
    x = 579,437.90

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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.