Home / 556,635.04-768,228.68-311,713.04

Finding the Fourth Proportional to 556,635.04, 768,228.68 and 311,713.04

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Solution

The fourth proportional to 556,635.04, 768,228.68 and 311,713.04 is: 430,204.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,635.04 : 768,228.68 = 311,713.04 : x
  2. Step 2: Convert to fraction form
    556,635.04/768,228.68 = 311,713.04/x
  3. Step 3: Cross multiply
    556,635.04x = 768,228.68 × 311,713.04
  4. Step 4: Simplify right side
    556,635.04x = 239,466,899,957.84
  5. Step 5: Solve for x
    x = 239,466,899,957.84/556,635.04
  6. Step 6: Final answer
    x = 430,204.50

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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.