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Finding the Fourth Proportional to 580,187.71, 869,682.88 and 243,423.91

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Solution

The fourth proportional to 580,187.71, 869,682.88 and 243,423.91 is: 364,884.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,187.71 : 869,682.88 = 243,423.91 : x
  2. Step 2: Convert to fraction form
    580,187.71/869,682.88 = 243,423.91/x
  3. Step 3: Cross multiply
    580,187.71x = 869,682.88 × 243,423.91
  4. Step 4: Simplify right side
    580,187.71x = 211,701,607,109.66
  5. Step 5: Solve for x
    x = 211,701,607,109.66/580,187.71
  6. Step 6: Final answer
    x = 364,884.68

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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.