Home / 738,333.60-1,107,500.40-486,391.20

Finding the Fourth Proportional to 738,333.60, 1,107,500.40 and 486,391.20

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Solution

The fourth proportional to 738,333.60, 1,107,500.40 and 486,391.20 is: 729,586.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,333.60 : 1,107,500.40 = 486,391.20 : x
  2. Step 2: Convert to fraction form
    738,333.60/1,107,500.40 = 486,391.20/x
  3. Step 3: Cross multiply
    738,333.60x = 1,107,500.40 × 486,391.20
  4. Step 4: Simplify right side
    738,333.60x = 538,678,448,556.48
  5. Step 5: Solve for x
    x = 538,678,448,556.48/738,333.60
  6. Step 6: Final answer
    x = 729,586.80

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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.