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Finding the Fourth Proportional to 670,601.60, 1,005,556.80 and 249,660.80

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Solution

The fourth proportional to 670,601.60, 1,005,556.80 and 249,660.80 is: 374,362.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,601.60 : 1,005,556.80 = 249,660.80 : x
  2. Step 2: Convert to fraction form
    670,601.60/1,005,556.80 = 249,660.80/x
  3. Step 3: Cross multiply
    670,601.60x = 1,005,556.80 × 249,660.80
  4. Step 4: Simplify right side
    670,601.60x = 251,048,115,133.44
  5. Step 5: Solve for x
    x = 251,048,115,133.44/670,601.60
  6. Step 6: Final answer
    x = 374,362.54

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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.