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Finding the Fourth Proportional to 636,528.60, 955,222.26 and 262,543.32

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Solution

The fourth proportional to 636,528.60, 955,222.26 and 262,543.32 is: 393,992.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,528.60 : 955,222.26 = 262,543.32 : x
  2. Step 2: Convert to fraction form
    636,528.60/955,222.26 = 262,543.32/x
  3. Step 3: Cross multiply
    636,528.60x = 955,222.26 × 262,543.32
  4. Step 4: Simplify right side
    636,528.60x = 250,787,223,478.30
  5. Step 5: Solve for x
    x = 250,787,223,478.30/636,528.60
  6. Step 6: Final answer
    x = 393,992.07

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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.