Home / 764,424.60-1,146,291.30-343,483.80

Finding the Fourth Proportional to 764,424.60, 1,146,291.30 and 343,483.80

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Solution

The fourth proportional to 764,424.60, 1,146,291.30 and 343,483.80 is: 515,070.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,424.60 : 1,146,291.30 = 343,483.80 : x
  2. Step 2: Convert to fraction form
    764,424.60/1,146,291.30 = 343,483.80/x
  3. Step 3: Cross multiply
    764,424.60x = 1,146,291.30 × 343,483.80
  4. Step 4: Simplify right side
    764,424.60x = 393,732,491,630.94
  5. Step 5: Solve for x
    x = 393,732,491,630.94/764,424.60
  6. Step 6: Final answer
    x = 515,070.41

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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.