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Finding the Fourth Proportional to 547,547.05, 755,606.96 and 305,833.06

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Solution

The fourth proportional to 547,547.05, 755,606.96 and 305,833.06 is: 422,045.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,547.05 : 755,606.96 = 305,833.06 : x
  2. Step 2: Convert to fraction form
    547,547.05/755,606.96 = 305,833.06/x
  3. Step 3: Cross multiply
    547,547.05x = 755,606.96 × 305,833.06
  4. Step 4: Simplify right side
    547,547.05x = 231,089,584,956.06
  5. Step 5: Solve for x
    x = 231,089,584,956.06/547,547.05
  6. Step 6: Final answer
    x = 422,045.17

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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.