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Finding the Fourth Proportional to 525,766.60, 787,613.10 and 488,441.80

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Solution

The fourth proportional to 525,766.60, 787,613.10 and 488,441.80 is: 731,699.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,766.60 : 787,613.10 = 488,441.80 : x
  2. Step 2: Convert to fraction form
    525,766.60/787,613.10 = 488,441.80/x
  3. Step 3: Cross multiply
    525,766.60x = 787,613.10 × 488,441.80
  4. Step 4: Simplify right side
    525,766.60x = 384,703,160,267.58
  5. Step 5: Solve for x
    x = 384,703,160,267.58/525,766.60
  6. Step 6: Final answer
    x = 731,699.50

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1.5x scale

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.