Home / 760,546.80-1,049,562.36-421,007.76

Finding the Fourth Proportional to 760,546.80, 1,049,562.36 and 421,007.76

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Solution

The fourth proportional to 760,546.80, 1,049,562.36 and 421,007.76 is: 580,995.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,546.80 : 1,049,562.36 = 421,007.76 : x
  2. Step 2: Convert to fraction form
    760,546.80/1,049,562.36 = 421,007.76/x
  3. Step 3: Cross multiply
    760,546.80x = 1,049,562.36 × 421,007.76
  4. Step 4: Simplify right side
    760,546.80x = 441,873,898,163.91
  5. Step 5: Solve for x
    x = 441,873,898,163.91/760,546.80
  6. Step 6: Final answer
    x = 580,995.01

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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.