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Finding the Fourth Proportional to 488,683.86, 673,689.87 and 359,393.82

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Solution

The fourth proportional to 488,683.86, 673,689.87 and 359,393.82 is: 495,453.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,683.86 : 673,689.87 = 359,393.82 : x
  2. Step 2: Convert to fraction form
    488,683.86/673,689.87 = 359,393.82/x
  3. Step 3: Cross multiply
    488,683.86x = 673,689.87 × 359,393.82
  4. Step 4: Simplify right side
    488,683.86x = 242,119,975,874.60
  5. Step 5: Solve for x
    x = 242,119,975,874.60/488,683.86
  6. Step 6: Final answer
    x = 495,453.19

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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.