Home / 1,432,186.56-1,976,378.04-787,606.77

Finding the Fourth Proportional to 1,432,186.56, 1,976,378.04 and 787,606.77

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Solution

The fourth proportional to 1,432,186.56, 1,976,378.04 and 787,606.77 is: 1,086,875.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,186.56 : 1,976,378.04 = 787,606.77 : x
  2. Step 2: Convert to fraction form
    1,432,186.56/1,976,378.04 = 787,606.77/x
  3. Step 3: Cross multiply
    1,432,186.56x = 1,976,378.04 × 787,606.77
  4. Step 4: Simplify right side
    1,432,186.56x = 1,556,608,724,383.33
  5. Step 5: Solve for x
    x = 1,556,608,724,383.33/1,432,186.56
  6. Step 6: Final answer
    x = 1,086,875.67

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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.