Home / 1,020,236.80-1,528,605.60-486,608.80

Finding the Fourth Proportional to 1,020,236.80, 1,528,605.60 and 486,608.80

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Solution

The fourth proportional to 1,020,236.80, 1,528,605.60 and 486,608.80 is: 729,078.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,236.80 : 1,528,605.60 = 486,608.80 : x
  2. Step 2: Convert to fraction form
    1,020,236.80/1,528,605.60 = 486,608.80/x
  3. Step 3: Cross multiply
    1,020,236.80x = 1,528,605.60 × 486,608.80
  4. Step 4: Simplify right side
    1,020,236.80x = 743,832,936,689.28
  5. Step 5: Solve for x
    x = 743,832,936,689.28/1,020,236.80
  6. Step 6: Final answer
    x = 729,078.72

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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.