Home / 1,329,651.42-1,991,298.33-766,980.06

Finding the Fourth Proportional to 1,329,651.42, 1,991,298.33 and 766,980.06

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Solution

The fourth proportional to 1,329,651.42, 1,991,298.33 and 766,980.06 is: 1,148,636.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,651.42 : 1,991,298.33 = 766,980.06 : x
  2. Step 2: Convert to fraction form
    1,329,651.42/1,991,298.33 = 766,980.06/x
  3. Step 3: Cross multiply
    1,329,651.42x = 1,991,298.33 × 766,980.06
  4. Step 4: Simplify right side
    1,329,651.42x = 1,527,286,112,621.30
  5. Step 5: Solve for x
    x = 1,527,286,112,621.30/1,329,651.42
  6. Step 6: Final answer
    x = 1,148,636.47

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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.