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Finding the Fourth Proportional to 618,510.96, 927,946.26 and 258,851.52

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Solution

The fourth proportional to 618,510.96, 927,946.26 and 258,851.52 is: 388,352.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,510.96 : 927,946.26 = 258,851.52 : x
  2. Step 2: Convert to fraction form
    618,510.96/927,946.26 = 258,851.52/x
  3. Step 3: Cross multiply
    618,510.96x = 927,946.26 × 258,851.52
  4. Step 4: Simplify right side
    618,510.96x = 240,200,299,879.32
  5. Step 5: Solve for x
    x = 240,200,299,879.32/618,510.96
  6. Step 6: Final answer
    x = 388,352.54

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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.