Home / 547,145.48-754,927.80-320,747.24

Finding the Fourth Proportional to 547,145.48, 754,927.80 and 320,747.24

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Solution

The fourth proportional to 547,145.48, 754,927.80 and 320,747.24 is: 442,553.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,145.48 : 754,927.80 = 320,747.24 : x
  2. Step 2: Convert to fraction form
    547,145.48/754,927.80 = 320,747.24/x
  3. Step 3: Cross multiply
    547,145.48x = 754,927.80 × 320,747.24
  4. Step 4: Simplify right side
    547,145.48x = 242,141,008,933.79
  5. Step 5: Solve for x
    x = 242,141,008,933.79/547,145.48
  6. Step 6: Final answer
    x = 442,553.25

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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.