Home / 1,326,270.80-1,989,405.72-328,998.80

Finding the Fourth Proportional to 1,326,270.80, 1,989,405.72 and 328,998.80

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Solution

The fourth proportional to 1,326,270.80, 1,989,405.72 and 328,998.80 is: 493,498.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,270.80 : 1,989,405.72 = 328,998.80 : x
  2. Step 2: Convert to fraction form
    1,326,270.80/1,989,405.72 = 328,998.80/x
  3. Step 3: Cross multiply
    1,326,270.80x = 1,989,405.72 × 328,998.80
  4. Step 4: Simplify right side
    1,326,270.80x = 654,512,094,593.14
  5. Step 5: Solve for x
    x = 654,512,094,593.14/1,326,270.80
  6. Step 6: Final answer
    x = 493,498.08

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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.