Home / 807,455.54-1,210,040.75-447,784.59

Finding the Fourth Proportional to 807,455.54, 1,210,040.75 and 447,784.59

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Solution

The fourth proportional to 807,455.54, 1,210,040.75 and 447,784.59 is: 671,043.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,455.54 : 1,210,040.75 = 447,784.59 : x
  2. Step 2: Convert to fraction form
    807,455.54/1,210,040.75 = 447,784.59/x
  3. Step 3: Cross multiply
    807,455.54x = 1,210,040.75 × 447,784.59
  4. Step 4: Simplify right side
    807,455.54x = 541,837,598,883.12
  5. Step 5: Solve for x
    x = 541,837,598,883.12/807,455.54
  6. Step 6: Final answer
    x = 671,043.27

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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.