Home / 406,943.68-609,628.32-228,909.76

Finding the Fourth Proportional to 406,943.68, 609,628.32 and 228,909.76

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Solution

The fourth proportional to 406,943.68, 609,628.32 and 228,909.76 is: 342,921.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,943.68 : 609,628.32 = 228,909.76 : x
  2. Step 2: Convert to fraction form
    406,943.68/609,628.32 = 228,909.76/x
  3. Step 3: Cross multiply
    406,943.68x = 609,628.32 × 228,909.76
  4. Step 4: Simplify right side
    406,943.68x = 139,549,872,420.40
  5. Step 5: Solve for x
    x = 139,549,872,420.40/406,943.68
  6. Step 6: Final answer
    x = 342,921.83

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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.