Home / 1,308,272.80-1,962,538.80-455,213.20

Finding the Fourth Proportional to 1,308,272.80, 1,962,538.80 and 455,213.20

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Solution

The fourth proportional to 1,308,272.80, 1,962,538.80 and 455,213.20 is: 682,864.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,272.80 : 1,962,538.80 = 455,213.20 : x
  2. Step 2: Convert to fraction form
    1,308,272.80/1,962,538.80 = 455,213.20/x
  3. Step 3: Cross multiply
    1,308,272.80x = 1,962,538.80 × 455,213.20
  4. Step 4: Simplify right side
    1,308,272.80x = 893,373,567,272.16
  5. Step 5: Solve for x
    x = 893,373,567,272.16/1,308,272.80
  6. Step 6: Final answer
    x = 682,864.89

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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.