Home / 771,156.64-1,064,201.52-449,054.56

Finding the Fourth Proportional to 771,156.64, 1,064,201.52 and 449,054.56

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Solution

The fourth proportional to 771,156.64, 1,064,201.52 and 449,054.56 is: 619,698.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,156.64 : 1,064,201.52 = 449,054.56 : x
  2. Step 2: Convert to fraction form
    771,156.64/1,064,201.52 = 449,054.56/x
  3. Step 3: Cross multiply
    771,156.64x = 1,064,201.52 × 449,054.56
  4. Step 4: Simplify right side
    771,156.64x = 477,884,545,314.93
  5. Step 5: Solve for x
    x = 477,884,545,314.93/771,156.64
  6. Step 6: Final answer
    x = 619,698.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.