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Finding the Fourth Proportional to 631,572.80, 945,976.80 and 548,628.80

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Solution

The fourth proportional to 631,572.80, 945,976.80 and 548,628.80 is: 821,742.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,572.80 : 945,976.80 = 548,628.80 : x
  2. Step 2: Convert to fraction form
    631,572.80/945,976.80 = 548,628.80/x
  3. Step 3: Cross multiply
    631,572.80x = 945,976.80 × 548,628.80
  4. Step 4: Simplify right side
    631,572.80x = 518,990,116,611.84
  5. Step 5: Solve for x
    x = 518,990,116,611.84/631,572.80
  6. Step 6: Final answer
    x = 821,742.35

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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.