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Finding the Fourth Proportional to 488,718.50, 732,847.70 and 189,339.26

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Solution

The fourth proportional to 488,718.50, 732,847.70 and 189,339.26 is: 283,919.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,718.50 : 732,847.70 = 189,339.26 : x
  2. Step 2: Convert to fraction form
    488,718.50/732,847.70 = 189,339.26/x
  3. Step 3: Cross multiply
    488,718.50x = 732,847.70 × 189,339.26
  4. Step 4: Simplify right side
    488,718.50x = 138,756,841,210.70
  5. Step 5: Solve for x
    x = 138,756,841,210.70/488,718.50
  6. Step 6: Final answer
    x = 283,919.76

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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.