Home / 1,323,010.80-1,979,850.60-921,769.20

Finding the Fourth Proportional to 1,323,010.80, 1,979,850.60 and 921,769.20

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Solution

The fourth proportional to 1,323,010.80, 1,979,850.60 and 921,769.20 is: 1,379,403.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,010.80 : 1,979,850.60 = 921,769.20 : x
  2. Step 2: Convert to fraction form
    1,323,010.80/1,979,850.60 = 921,769.20/x
  3. Step 3: Cross multiply
    1,323,010.80x = 1,979,850.60 × 921,769.20
  4. Step 4: Simplify right side
    1,323,010.80x = 1,824,965,303,681.52
  5. Step 5: Solve for x
    x = 1,824,965,303,681.52/1,323,010.80
  6. Step 6: Final answer
    x = 1,379,403.18

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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.