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Finding the Fourth Proportional to 618,547.26, 927,558.45 and 219,288.54

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Solution

The fourth proportional to 618,547.26, 927,558.45 and 219,288.54 is: 328,839.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,547.26 : 927,558.45 = 219,288.54 : x
  2. Step 2: Convert to fraction form
    618,547.26/927,558.45 = 219,288.54/x
  3. Step 3: Cross multiply
    618,547.26x = 927,558.45 × 219,288.54
  4. Step 4: Simplify right side
    618,547.26x = 203,402,938,265.16
  5. Step 5: Solve for x
    x = 203,402,938,265.16/618,547.26
  6. Step 6: Final answer
    x = 328,839.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.