Home / 1,255,032.12-1,731,908.39-711,343.62

Finding the Fourth Proportional to 1,255,032.12, 1,731,908.39 and 711,343.62

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Solution

The fourth proportional to 1,255,032.12, 1,731,908.39 and 711,343.62 is: 981,633.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,032.12 : 1,731,908.39 = 711,343.62 : x
  2. Step 2: Convert to fraction form
    1,255,032.12/1,731,908.39 = 711,343.62/x
  3. Step 3: Cross multiply
    1,255,032.12x = 1,731,908.39 × 711,343.62
  4. Step 4: Simplify right side
    1,255,032.12x = 1,231,981,980,094.25
  5. Step 5: Solve for x
    x = 1,231,981,980,094.25/1,255,032.12
  6. Step 6: Final answer
    x = 981,633.82

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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.