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Finding the Fourth Proportional to 440,352.80, 660,529.20 and 274,234.40

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Solution

The fourth proportional to 440,352.80, 660,529.20 and 274,234.40 is: 411,351.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,352.80 : 660,529.20 = 274,234.40 : x
  2. Step 2: Convert to fraction form
    440,352.80/660,529.20 = 274,234.40/x
  3. Step 3: Cross multiply
    440,352.80x = 660,529.20 × 274,234.40
  4. Step 4: Simplify right side
    440,352.80x = 181,139,828,844.48
  5. Step 5: Solve for x
    x = 181,139,828,844.48/440,352.80
  6. Step 6: Final answer
    x = 411,351.60

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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.