Home / 1,455,190.80-2,182,786.20-457,918.80

Finding the Fourth Proportional to 1,455,190.80, 2,182,786.20 and 457,918.80

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Solution

The fourth proportional to 1,455,190.80, 2,182,786.20 and 457,918.80 is: 686,878.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,190.80 : 2,182,786.20 = 457,918.80 : x
  2. Step 2: Convert to fraction form
    1,455,190.80/2,182,786.20 = 457,918.80/x
  3. Step 3: Cross multiply
    1,455,190.80x = 2,182,786.20 × 457,918.80
  4. Step 4: Simplify right side
    1,455,190.80x = 999,538,837,360.56
  5. Step 5: Solve for x
    x = 999,538,837,360.56/1,455,190.80
  6. Step 6: Final answer
    x = 686,878.20

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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.