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Finding the Fourth Proportional to 579,810.76, 869,798.16 and 180,491.88

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Solution

The fourth proportional to 579,810.76, 869,798.16 and 180,491.88 is: 270,763.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,810.76 : 869,798.16 = 180,491.88 : x
  2. Step 2: Convert to fraction form
    579,810.76/869,798.16 = 180,491.88/x
  3. Step 3: Cross multiply
    579,810.76x = 869,798.16 × 180,491.88
  4. Step 4: Simplify right side
    579,810.76x = 156,991,505,118.94
  5. Step 5: Solve for x
    x = 156,991,505,118.94/579,810.76
  6. Step 6: Final answer
    x = 270,763.35

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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.