Home / 1,543,115.80-2,129,005.38-999,670.60

Finding the Fourth Proportional to 1,543,115.80, 2,129,005.38 and 999,670.60

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Solution

The fourth proportional to 1,543,115.80, 2,129,005.38 and 999,670.60 is: 1,379,225.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,115.80 : 2,129,005.38 = 999,670.60 : x
  2. Step 2: Convert to fraction form
    1,543,115.80/2,129,005.38 = 999,670.60/x
  3. Step 3: Cross multiply
    1,543,115.80x = 2,129,005.38 × 999,670.60
  4. Step 4: Simplify right side
    1,543,115.80x = 2,128,304,085,627.83
  5. Step 5: Solve for x
    x = 2,128,304,085,627.83/1,543,115.80
  6. Step 6: Final answer
    x = 1,379,225.13

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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.