Home / 1,238,407.68-1,857,613.14-339,861.72

Finding the Fourth Proportional to 1,238,407.68, 1,857,613.14 and 339,861.72

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Solution

The fourth proportional to 1,238,407.68, 1,857,613.14 and 339,861.72 is: 509,793.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,407.68 : 1,857,613.14 = 339,861.72 : x
  2. Step 2: Convert to fraction form
    1,238,407.68/1,857,613.14 = 339,861.72/x
  3. Step 3: Cross multiply
    1,238,407.68x = 1,857,613.14 × 339,861.72
  4. Step 4: Simplify right side
    1,238,407.68x = 631,331,596,855.00
  5. Step 5: Solve for x
    x = 631,331,596,855.00/1,238,407.68
  6. Step 6: Final answer
    x = 509,793.02

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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.