Home / 1,276,192.64-1,914,326.08-477,321.78

Finding the Fourth Proportional to 1,276,192.64, 1,914,326.08 and 477,321.78

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Solution

The fourth proportional to 1,276,192.64, 1,914,326.08 and 477,321.78 is: 715,996.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,192.64 : 1,914,326.08 = 477,321.78 : x
  2. Step 2: Convert to fraction form
    1,276,192.64/1,914,326.08 = 477,321.78/x
  3. Step 3: Cross multiply
    1,276,192.64x = 1,914,326.08 × 477,321.78
  4. Step 4: Simplify right side
    1,276,192.64x = 913,749,532,006.02
  5. Step 5: Solve for x
    x = 913,749,532,006.02/1,276,192.64
  6. Step 6: Final answer
    x = 715,996.55

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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.