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Finding the Fourth Proportional to 547,020.48, 754,926.21 and 305,350.14

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Solution

The fourth proportional to 547,020.48, 754,926.21 and 305,350.14 is: 421,404.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,020.48 : 754,926.21 = 305,350.14 : x
  2. Step 2: Convert to fraction form
    547,020.48/754,926.21 = 305,350.14/x
  3. Step 3: Cross multiply
    547,020.48x = 754,926.21 × 305,350.14
  4. Step 4: Simplify right side
    547,020.48x = 230,516,823,913.17
  5. Step 5: Solve for x
    x = 230,516,823,913.17/547,020.48
  6. Step 6: Final answer
    x = 421,404.38

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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.