Home / 1,329,652.92-1,991,300.58-766,981.56

Finding the Fourth Proportional to 1,329,652.92, 1,991,300.58 and 766,981.56

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Solution

The fourth proportional to 1,329,652.92, 1,991,300.58 and 766,981.56 is: 1,148,638.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,652.92 : 1,991,300.58 = 766,981.56 : x
  2. Step 2: Convert to fraction form
    1,329,652.92/1,991,300.58 = 766,981.56/x
  3. Step 3: Cross multiply
    1,329,652.92x = 1,991,300.58 × 766,981.56
  4. Step 4: Simplify right side
    1,329,652.92x = 1,527,290,825,277.31
  5. Step 5: Solve for x
    x = 1,527,290,825,277.31/1,329,652.92
  6. Step 6: Final answer
    x = 1,148,638.72

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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.