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Finding the Fourth Proportional to 410,059.60, 614,974.20 and 129,662.80

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Solution

The fourth proportional to 410,059.60, 614,974.20 and 129,662.80 is: 194,457.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,059.60 : 614,974.20 = 129,662.80 : x
  2. Step 2: Convert to fraction form
    410,059.60/614,974.20 = 129,662.80/x
  3. Step 3: Cross multiply
    410,059.60x = 614,974.20 × 129,662.80
  4. Step 4: Simplify right side
    410,059.60x = 79,739,276,699.76
  5. Step 5: Solve for x
    x = 79,739,276,699.76/410,059.60
  6. Step 6: Final answer
    x = 194,457.77

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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.