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Finding the Fourth Proportional to 484,812.40, 727,218.60 and 297,929.20

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Solution

The fourth proportional to 484,812.40, 727,218.60 and 297,929.20 is: 446,893.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,812.40 : 727,218.60 = 297,929.20 : x
  2. Step 2: Convert to fraction form
    484,812.40/727,218.60 = 297,929.20/x
  3. Step 3: Cross multiply
    484,812.40x = 727,218.60 × 297,929.20
  4. Step 4: Simplify right side
    484,812.40x = 216,659,655,723.12
  5. Step 5: Solve for x
    x = 216,659,655,723.12/484,812.40
  6. Step 6: Final answer
    x = 446,893.80

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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.