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Finding the Fourth Proportional to 440,412.80, 660,619.20 and 366,929.60

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Solution

The fourth proportional to 440,412.80, 660,619.20 and 366,929.60 is: 550,394.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,412.80 : 660,619.20 = 366,929.60 : x
  2. Step 2: Convert to fraction form
    440,412.80/660,619.20 = 366,929.60/x
  3. Step 3: Cross multiply
    440,412.80x = 660,619.20 × 366,929.60
  4. Step 4: Simplify right side
    440,412.80x = 242,400,738,808.32
  5. Step 5: Solve for x
    x = 242,400,738,808.32/440,412.80
  6. Step 6: Final answer
    x = 550,394.40

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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.