Home / 762,051.90-1,051,149.62-489,651.60

Finding the Fourth Proportional to 762,051.90, 1,051,149.62 and 489,651.60

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Solution

The fourth proportional to 762,051.90, 1,051,149.62 and 489,651.60 is: 675,409.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,051.90 : 1,051,149.62 = 489,651.60 : x
  2. Step 2: Convert to fraction form
    762,051.90/1,051,149.62 = 489,651.60/x
  3. Step 3: Cross multiply
    762,051.90x = 1,051,149.62 × 489,651.60
  4. Step 4: Simplify right side
    762,051.90x = 514,697,093,272.39
  5. Step 5: Solve for x
    x = 514,697,093,272.39/762,051.90
  6. Step 6: Final answer
    x = 675,409.50

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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.