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Finding the Fourth Proportional to 545,001.75, 752,102.42 and 306,537.75

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Solution

The fourth proportional to 545,001.75, 752,102.42 and 306,537.75 is: 423,022.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,001.75 : 752,102.42 = 306,537.75 : x
  2. Step 2: Convert to fraction form
    545,001.75/752,102.42 = 306,537.75/x
  3. Step 3: Cross multiply
    545,001.75x = 752,102.42 × 306,537.75
  4. Step 4: Simplify right side
    545,001.75x = 230,547,782,063.67
  5. Step 5: Solve for x
    x = 230,547,782,063.67/545,001.75
  6. Step 6: Final answer
    x = 423,022.10

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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.