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Finding the Fourth Proportional to 489,526.50, 675,545.82 and 274,686.54

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Solution

The fourth proportional to 489,526.50, 675,545.82 and 274,686.54 is: 379,067.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,526.50 : 675,545.82 = 274,686.54 : x
  2. Step 2: Convert to fraction form
    489,526.50/675,545.82 = 274,686.54/x
  3. Step 3: Cross multiply
    489,526.50x = 675,545.82 × 274,686.54
  4. Step 4: Simplify right side
    489,526.50x = 185,563,343,907.26
  5. Step 5: Solve for x
    x = 185,563,343,907.26/489,526.50
  6. Step 6: Final answer
    x = 379,067.00

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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.