Home / 821,538.32-1,230,634.40-670,274.46

Finding the Fourth Proportional to 821,538.32, 1,230,634.40 and 670,274.46

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Solution

The fourth proportional to 821,538.32, 1,230,634.40 and 670,274.46 is: 1,004,046.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,538.32 : 1,230,634.40 = 670,274.46 : x
  2. Step 2: Convert to fraction form
    821,538.32/1,230,634.40 = 670,274.46/x
  3. Step 3: Cross multiply
    821,538.32x = 1,230,634.40 × 670,274.46
  4. Step 4: Simplify right side
    821,538.32x = 824,862,804,566.05
  5. Step 5: Solve for x
    x = 824,862,804,566.05/821,538.32
  6. Step 6: Final answer
    x = 1,004,046.66

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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.