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Finding the Fourth Proportional to 484,010.20, 726,015.30 and 465,639.40

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Solution

The fourth proportional to 484,010.20, 726,015.30 and 465,639.40 is: 698,459.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,010.20 : 726,015.30 = 465,639.40 : x
  2. Step 2: Convert to fraction form
    484,010.20/726,015.30 = 465,639.40/x
  3. Step 3: Cross multiply
    484,010.20x = 726,015.30 × 465,639.40
  4. Step 4: Simplify right side
    484,010.20x = 338,061,328,682.82
  5. Step 5: Solve for x
    x = 338,061,328,682.82/484,010.20
  6. Step 6: Final answer
    x = 698,459.10

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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.