Home / 547,145.87-754,928.30-320,747.63

Finding the Fourth Proportional to 547,145.87, 754,928.30 and 320,747.63

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Solution

The fourth proportional to 547,145.87, 754,928.30 and 320,747.63 is: 442,553.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,145.87 : 754,928.30 = 320,747.63 : x
  2. Step 2: Convert to fraction form
    547,145.87/754,928.30 = 320,747.63/x
  3. Step 3: Cross multiply
    547,145.87x = 754,928.30 × 320,747.63
  4. Step 4: Simplify right side
    547,145.87x = 242,141,457,666.55
  5. Step 5: Solve for x
    x = 242,141,457,666.55/547,145.87
  6. Step 6: Final answer
    x = 442,553.76

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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.