Home / 1,178,871.23-1,768,651.91-380,136.71

Finding the Fourth Proportional to 1,178,871.23, 1,768,651.91 and 380,136.71

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Solution

The fourth proportional to 1,178,871.23, 1,768,651.91 and 380,136.71 is: 570,316.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,871.23 : 1,768,651.91 = 380,136.71 : x
  2. Step 2: Convert to fraction form
    1,178,871.23/1,768,651.91 = 380,136.71/x
  3. Step 3: Cross multiply
    1,178,871.23x = 1,768,651.91 × 380,136.71
  4. Step 4: Simplify right side
    1,178,871.23x = 672,329,516,301.93
  5. Step 5: Solve for x
    x = 672,329,516,301.93/1,178,871.23
  6. Step 6: Final answer
    x = 570,316.33

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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.