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Finding the Fourth Proportional to 887,618.60, 1,330,771.80 and 488,709.80

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Solution

The fourth proportional to 887,618.60, 1,330,771.80 and 488,709.80 is: 732,703.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,618.60 : 1,330,771.80 = 488,709.80 : x
  2. Step 2: Convert to fraction form
    887,618.60/1,330,771.80 = 488,709.80/x
  3. Step 3: Cross multiply
    887,618.60x = 1,330,771.80 × 488,709.80
  4. Step 4: Simplify right side
    887,618.60x = 650,361,220,223.64
  5. Step 5: Solve for x
    x = 650,361,220,223.64/887,618.60
  6. Step 6: Final answer
    x = 732,703.46

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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.