Home / 780,827.84-1,171,522.72-307,250.88

Finding the Fourth Proportional to 780,827.84, 1,171,522.72 and 307,250.88

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Solution

The fourth proportional to 780,827.84, 1,171,522.72 and 307,250.88 is: 460,986.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,827.84 : 1,171,522.72 = 307,250.88 : x
  2. Step 2: Convert to fraction form
    780,827.84/1,171,522.72 = 307,250.88/x
  3. Step 3: Cross multiply
    780,827.84x = 1,171,522.72 × 307,250.88
  4. Step 4: Simplify right side
    780,827.84x = 359,951,386,659.99
  5. Step 5: Solve for x
    x = 359,951,386,659.99/780,827.84
  6. Step 6: Final answer
    x = 460,986.88

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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.