Home / 872,390.08-1,308,049.20-339,289.72

Finding the Fourth Proportional to 872,390.08, 1,308,049.20 and 339,289.72

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Solution

The fourth proportional to 872,390.08, 1,308,049.20 and 339,289.72 is: 508,726.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,390.08 : 1,308,049.20 = 339,289.72 : x
  2. Step 2: Convert to fraction form
    872,390.08/1,308,049.20 = 339,289.72/x
  3. Step 3: Cross multiply
    872,390.08x = 1,308,049.20 × 339,289.72
  4. Step 4: Simplify right side
    872,390.08x = 443,807,646,814.22
  5. Step 5: Solve for x
    x = 443,807,646,814.22/872,390.08
  6. Step 6: Final answer
    x = 508,726.15

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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.