Home / 869,311.23-1,302,171.89-644,925.03

Finding the Fourth Proportional to 869,311.23, 1,302,171.89 and 644,925.03

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Solution

The fourth proportional to 869,311.23, 1,302,171.89 and 644,925.03 is: 966,055.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,311.23 : 1,302,171.89 = 644,925.03 : x
  2. Step 2: Convert to fraction form
    869,311.23/1,302,171.89 = 644,925.03/x
  3. Step 3: Cross multiply
    869,311.23x = 1,302,171.89 × 644,925.03
  4. Step 4: Simplify right side
    869,311.23x = 839,803,241,998.78
  5. Step 5: Solve for x
    x = 839,803,241,998.78/869,311.23
  6. Step 6: Final answer
    x = 966,055.90

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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.