Home / 780,803.84-1,171,486.72-307,226.88

Finding the Fourth Proportional to 780,803.84, 1,171,486.72 and 307,226.88

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Solution

The fourth proportional to 780,803.84, 1,171,486.72 and 307,226.88 is: 460,950.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,803.84 : 1,171,486.72 = 307,226.88 : x
  2. Step 2: Convert to fraction form
    780,803.84/1,171,486.72 = 307,226.88/x
  3. Step 3: Cross multiply
    780,803.84x = 1,171,486.72 × 307,226.88
  4. Step 4: Simplify right side
    780,803.84x = 359,912,209,947.03
  5. Step 5: Solve for x
    x = 359,912,209,947.03/780,803.84
  6. Step 6: Final answer
    x = 460,950.87

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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.