Home / 1,129,338.23-1,558,743.95-646,169.79

Finding the Fourth Proportional to 1,129,338.23, 1,558,743.95 and 646,169.79

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Solution

The fourth proportional to 1,129,338.23, 1,558,743.95 and 646,169.79 is: 891,861.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,338.23 : 1,558,743.95 = 646,169.79 : x
  2. Step 2: Convert to fraction form
    1,129,338.23/1,558,743.95 = 646,169.79/x
  3. Step 3: Cross multiply
    1,129,338.23x = 1,558,743.95 × 646,169.79
  4. Step 4: Simplify right side
    1,129,338.23x = 1,007,213,247,604.42
  5. Step 5: Solve for x
    x = 1,007,213,247,604.42/1,129,338.23
  6. Step 6: Final answer
    x = 891,861.47

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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.