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Finding the Fourth Proportional to 484,479.60, 726,719.40 and 297,855.60

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Solution

The fourth proportional to 484,479.60, 726,719.40 and 297,855.60 is: 446,783.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,479.60 : 726,719.40 = 297,855.60 : x
  2. Step 2: Convert to fraction form
    484,479.60/726,719.40 = 297,855.60/x
  3. Step 3: Cross multiply
    484,479.60x = 726,719.40 × 297,855.60
  4. Step 4: Simplify right side
    484,479.60x = 216,457,442,918.64
  5. Step 5: Solve for x
    x = 216,457,442,918.64/484,479.60
  6. Step 6: Final answer
    x = 446,783.40

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Similar ratio
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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.