Home / 851,400.18-1,175,102.46-489,072.60

Finding the Fourth Proportional to 851,400.18, 1,175,102.46 and 489,072.60

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Solution

The fourth proportional to 851,400.18, 1,175,102.46 and 489,072.60 is: 675,017.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,400.18 : 1,175,102.46 = 489,072.60 : x
  2. Step 2: Convert to fraction form
    851,400.18/1,175,102.46 = 489,072.60/x
  3. Step 3: Cross multiply
    851,400.18x = 1,175,102.46 × 489,072.60
  4. Step 4: Simplify right side
    851,400.18x = 574,710,415,378.60
  5. Step 5: Solve for x
    x = 574,710,415,378.60/851,400.18
  6. Step 6: Final answer
    x = 675,017.96

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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.