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Finding the Fourth Proportional to 869,194.67, 1,303,978.95 and 292,875.30

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Solution

The fourth proportional to 869,194.67, 1,303,978.95 and 292,875.30 is: 439,375.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,194.67 : 1,303,978.95 = 292,875.30 : x
  2. Step 2: Convert to fraction form
    869,194.67/1,303,978.95 = 292,875.30/x
  3. Step 3: Cross multiply
    869,194.67x = 1,303,978.95 × 292,875.30
  4. Step 4: Simplify right side
    869,194.67x = 381,903,226,174.94
  5. Step 5: Solve for x
    x = 381,903,226,174.94/869,194.67
  6. Step 6: Final answer
    x = 439,375.94

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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.