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Finding the Fourth Proportional to 662,772.60, 993,138.30 and 493,498.80

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Solution

The fourth proportional to 662,772.60, 993,138.30 and 493,498.80 is: 739,488.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,772.60 : 993,138.30 = 493,498.80 : x
  2. Step 2: Convert to fraction form
    662,772.60/993,138.30 = 493,498.80/x
  3. Step 3: Cross multiply
    662,772.60x = 993,138.30 × 493,498.80
  4. Step 4: Simplify right side
    662,772.60x = 490,112,559,284.04
  5. Step 5: Solve for x
    x = 490,112,559,284.04/662,772.60
  6. Step 6: Final answer
    x = 739,488.26

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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.