Home / 1,158,672.70-1,738,009.05-661,008.70

Finding the Fourth Proportional to 1,158,672.70, 1,738,009.05 and 661,008.70

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Solution

The fourth proportional to 1,158,672.70, 1,738,009.05 and 661,008.70 is: 991,513.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158,672.70 : 1,738,009.05 = 661,008.70 : x
  2. Step 2: Convert to fraction form
    1,158,672.70/1,738,009.05 = 661,008.70/x
  3. Step 3: Cross multiply
    1,158,672.70x = 1,738,009.05 × 661,008.70
  4. Step 4: Simplify right side
    1,158,672.70x = 1,148,839,102,728.73
  5. Step 5: Solve for x
    x = 1,148,839,102,728.73/1,158,672.70
  6. Step 6: Final answer
    x = 991,513.05

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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.