Home / 1,580,318.64-2,181,182.04-999,172.80

Finding the Fourth Proportional to 1,580,318.64, 2,181,182.04 and 999,172.80

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Solution

The fourth proportional to 1,580,318.64, 2,181,182.04 and 999,172.80 is: 1,379,074.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,580,318.64 : 2,181,182.04 = 999,172.80 : x
  2. Step 2: Convert to fraction form
    1,580,318.64/2,181,182.04 = 999,172.80/x
  3. Step 3: Cross multiply
    1,580,318.64x = 2,181,182.04 × 999,172.80
  4. Step 4: Simplify right side
    1,580,318.64x = 2,179,377,766,216.51
  5. Step 5: Solve for x
    x = 2,179,377,766,216.51/1,580,318.64
  6. Step 6: Final answer
    x = 1,379,074.90

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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.