Home / 547,060.48-754,981.50-305,390.23

Finding the Fourth Proportional to 547,060.48, 754,981.50 and 305,390.23

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Solution

The fourth proportional to 547,060.48, 754,981.50 and 305,390.23 is: 421,459.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,060.48 : 754,981.50 = 305,390.23 : x
  2. Step 2: Convert to fraction form
    547,060.48/754,981.50 = 305,390.23/x
  3. Step 3: Cross multiply
    547,060.48x = 754,981.50 × 305,390.23
  4. Step 4: Simplify right side
    547,060.48x = 230,563,973,930.75
  5. Step 5: Solve for x
    x = 230,563,973,930.75/547,060.48
  6. Step 6: Final answer
    x = 421,459.75

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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.