Home / 1,254,933.40-1,731,803.40-711,172.80

Finding the Fourth Proportional to 1,254,933.40, 1,731,803.40 and 711,172.80

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Solution

The fourth proportional to 1,254,933.40, 1,731,803.40 and 711,172.80 is: 981,415.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,254,933.40 : 1,731,803.40 = 711,172.80 : x
  2. Step 2: Convert to fraction form
    1,254,933.40/1,731,803.40 = 711,172.80/x
  3. Step 3: Cross multiply
    1,254,933.40x = 1,731,803.40 × 711,172.80
  4. Step 4: Simplify right side
    1,254,933.40x = 1,231,611,473,027.52
  5. Step 5: Solve for x
    x = 1,231,611,473,027.52/1,254,933.40
  6. Step 6: Final answer
    x = 981,415.81

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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.