Home / 1,247,769.65-1,721,938.83-703,903.76

Finding the Fourth Proportional to 1,247,769.65, 1,721,938.83 and 703,903.76

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Solution

The fourth proportional to 1,247,769.65, 1,721,938.83 and 703,903.76 is: 971,396.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,769.65 : 1,721,938.83 = 703,903.76 : x
  2. Step 2: Convert to fraction form
    1,247,769.65/1,721,938.83 = 703,903.76/x
  3. Step 3: Cross multiply
    1,247,769.65x = 1,721,938.83 × 703,903.76
  4. Step 4: Simplify right side
    1,247,769.65x = 1,212,079,208,317.31
  5. Step 5: Solve for x
    x = 1,212,079,208,317.31/1,247,769.65
  6. Step 6: Final answer
    x = 971,396.61

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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.