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Finding the Fourth Proportional to 439,226.40, 658,839.60 and 360,429.60

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Solution

The fourth proportional to 439,226.40, 658,839.60 and 360,429.60 is: 540,644.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,226.40 : 658,839.60 = 360,429.60 : x
  2. Step 2: Convert to fraction form
    439,226.40/658,839.60 = 360,429.60/x
  3. Step 3: Cross multiply
    439,226.40x = 658,839.60 × 360,429.60
  4. Step 4: Simplify right side
    439,226.40x = 237,465,293,492.16
  5. Step 5: Solve for x
    x = 237,465,293,492.16/439,226.40
  6. Step 6: Final answer
    x = 540,644.40

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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.